Home / 13,639,969,356.48-18,823,157,547.48-7,381,720,140.48

Finding the Fourth Proportional to 13,639,969,356.48, 18,823,157,547.48 and 7,381,720,140.48

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Solution

The fourth proportional to 13,639,969,356.48, 18,823,157,547.48 and 7,381,720,140.48 is: 10,186,773,704.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,969,356.48 : 18,823,157,547.48 = 7,381,720,140.48 : x
  2. Step 2: Convert to fraction form
    13,639,969,356.48/18,823,157,547.48 = 7,381,720,140.48/x
  3. Step 3: Cross multiply
    13,639,969,356.48x = 18,823,157,547.48 × 7,381,720,140.48
  4. Step 4: Simplify right side
    13,639,969,356.48x = 138,947,281,175,661,232,128
  5. Step 5: Solve for x
    x = 138,947,281,175,661,232,128/13,639,969,356.48
  6. Step 6: Final answer
    x = 10,186,773,704.86

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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.