Home / 1,440,931,108.32-1,988,486,629.38-780,881,386.32

Finding the Fourth Proportional to 1,440,931,108.32, 1,988,486,629.38 and 780,881,386.32

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Solution

The fourth proportional to 1,440,931,108.32, 1,988,486,629.38 and 780,881,386.32 is: 1,077,617,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,931,108.32 : 1,988,486,629.38 = 780,881,386.32 : x
  2. Step 2: Convert to fraction form
    1,440,931,108.32/1,988,486,629.38 = 780,881,386.32/x
  3. Step 3: Cross multiply
    1,440,931,108.32x = 1,988,486,629.38 × 780,881,386.32
  4. Step 4: Simplify right side
    1,440,931,108.32x = 1,552,772,195,829,038,592
  5. Step 5: Solve for x
    x = 1,552,772,195,829,038,592/1,440,931,108.32
  6. Step 6: Final answer
    x = 1,077,617,234.34

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,440,931,109.32, 1,988,486,630.76 and 780,881,387.32
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.