Home / 1,440,931,014.96-1,988,486,500.68-780,881,292.96

Finding the Fourth Proportional to 1,440,931,014.96, 1,988,486,500.68 and 780,881,292.96

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Solution

The fourth proportional to 1,440,931,014.96, 1,988,486,500.68 and 780,881,292.96 is: 1,077,617,105.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,931,014.96 : 1,988,486,500.68 = 780,881,292.96 : x
  2. Step 2: Convert to fraction form
    1,440,931,014.96/1,988,486,500.68 = 780,881,292.96/x
  3. Step 3: Cross multiply
    1,440,931,014.96x = 1,988,486,500.68 × 780,881,292.96
  4. Step 4: Simplify right side
    1,440,931,014.96x = 1,552,771,909,684,504,320
  5. Step 5: Solve for x
    x = 1,552,771,909,684,504,320/1,440,931,014.96
  6. Step 6: Final answer
    x = 1,077,617,105.58

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Double scale
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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.