Home / 688,307,261,780.25-949,866,974,305.38-375,454,463,490.68

Finding the Fourth Proportional to 688,307,261,780.25, 949,866,974,305.38 and 375,454,463,490.68

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Solution

The fourth proportional to 688,307,261,780.25, 949,866,974,305.38 and 375,454,463,490.68 is: 518,128,770,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,307,261,780.25 : 949,866,974,305.38 = 375,454,463,490.68 : x
  2. Step 2: Convert to fraction form
    688,307,261,780.25/949,866,974,305.38 = 375,454,463,490.68/x
  3. Step 3: Cross multiply
    688,307,261,780.25x = 949,866,974,305.38 × 375,454,463,490.68
  4. Step 4: Simplify right side
    688,307,261,780.25x = 356,631,795,225,341,995,253,760
  5. Step 5: Solve for x
    x = 356,631,795,225,341,995,253,760/688,307,261,780.25
  6. Step 6: Final answer
    x = 518,128,770,431.60

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Double scale
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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.