Home / 688,307,261,782.50-949,866,974,308.50-375,454,463,492.92

Finding the Fourth Proportional to 688,307,261,782.50, 949,866,974,308.50 and 375,454,463,492.92

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Solution

The fourth proportional to 688,307,261,782.50, 949,866,974,308.50 and 375,454,463,492.92 is: 518,128,770,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,307,261,782.50 : 949,866,974,308.50 = 375,454,463,492.92 : x
  2. Step 2: Convert to fraction form
    688,307,261,782.50/949,866,974,308.50 = 375,454,463,492.92/x
  3. Step 3: Cross multiply
    688,307,261,782.50x = 949,866,974,308.50 × 375,454,463,492.92
  4. Step 4: Simplify right side
    688,307,261,782.50x = 356,631,795,228,641,067,008,000
  5. Step 5: Solve for x
    x = 356,631,795,228,641,067,008,000/688,307,261,782.50
  6. Step 6: Final answer
    x = 518,128,770,434.70

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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.