Home / 138,415,266.10-207,454,937.55-61,656,814.90

Finding the Fourth Proportional to 138,415,266.10, 207,454,937.55 and 61,656,814.90

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Solution

The fourth proportional to 138,415,266.10, 207,454,937.55 and 61,656,814.90 is: 92,410,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,415,266.10 : 207,454,937.55 = 61,656,814.90 : x
  2. Step 2: Convert to fraction form
    138,415,266.10/207,454,937.55 = 61,656,814.90/x
  3. Step 3: Cross multiply
    138,415,266.10x = 207,454,937.55 × 61,656,814.90
  4. Step 4: Simplify right side
    138,415,266.10x = 12,791,010,684,611,410
  5. Step 5: Solve for x
    x = 12,791,010,684,611,410/138,415,266.10
  6. Step 6: Final answer
    x = 92,410,404.18

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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.