Home / 74,192,753.90-102,385,672.40-42,402,393.12

Finding the Fourth Proportional to 74,192,753.90, 102,385,672.40 and 42,402,393.12

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Solution

The fourth proportional to 74,192,753.90, 102,385,672.40 and 42,402,393.12 is: 58,515,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,192,753.90 : 102,385,672.40 = 42,402,393.12 : x
  2. Step 2: Convert to fraction form
    74,192,753.90/102,385,672.40 = 42,402,393.12/x
  3. Step 3: Cross multiply
    74,192,753.90x = 102,385,672.40 × 42,402,393.12
  4. Step 4: Simplify right side
    74,192,753.90x = 4,341,397,530,576,388
  5. Step 5: Solve for x
    x = 4,341,397,530,576,388/74,192,753.90
  6. Step 6: Final answer
    x = 58,515,115.05

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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.