Home / 91,609,957.20-137,414,935.80-77,261,050.20

Finding the Fourth Proportional to 91,609,957.20, 137,414,935.80 and 77,261,050.20

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Solution

The fourth proportional to 91,609,957.20, 137,414,935.80 and 77,261,050.20 is: 115,891,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,609,957.20 : 137,414,935.80 = 77,261,050.20 : x
  2. Step 2: Convert to fraction form
    91,609,957.20/137,414,935.80 = 77,261,050.20/x
  3. Step 3: Cross multiply
    91,609,957.20x = 137,414,935.80 × 77,261,050.20
  4. Step 4: Simplify right side
    91,609,957.20x = 10,616,822,253,073,578
  5. Step 5: Solve for x
    x = 10,616,822,253,073,578/91,609,957.20
  6. Step 6: Final answer
    x = 115,891,575.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.