Home / 66,429,553.45-99,644,330.18-40,787,415.85

Finding the Fourth Proportional to 66,429,553.45, 99,644,330.18 and 40,787,415.85

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Solution

The fourth proportional to 66,429,553.45, 99,644,330.18 and 40,787,415.85 is: 61,181,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,553.45 : 99,644,330.18 = 40,787,415.85 : x
  2. Step 2: Convert to fraction form
    66,429,553.45/99,644,330.18 = 40,787,415.85/x
  3. Step 3: Cross multiply
    66,429,553.45x = 99,644,330.18 × 40,787,415.85
  4. Step 4: Simplify right side
    66,429,553.45x = 4,064,234,732,146,366
  5. Step 5: Solve for x
    x = 4,064,234,732,146,366/66,429,553.45
  6. Step 6: Final answer
    x = 61,181,123.78

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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.