Home / 78,343,640.60-117,534,123.30-37,920,882.20

Finding the Fourth Proportional to 78,343,640.60, 117,534,123.30 and 37,920,882.20

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Solution

The fourth proportional to 78,343,640.60, 117,534,123.30 and 37,920,882.20 is: 56,890,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,343,640.60 : 117,534,123.30 = 37,920,882.20 : x
  2. Step 2: Convert to fraction form
    78,343,640.60/117,534,123.30 = 37,920,882.20/x
  3. Step 3: Cross multiply
    78,343,640.60x = 117,534,123.30 × 37,920,882.20
  4. Step 4: Simplify right side
    78,343,640.60x = 4,456,997,644,139,575.50
  5. Step 5: Solve for x
    x = 4,456,997,644,139,575.50/78,343,640.60
  6. Step 6: Final answer
    x = 56,890,356.51

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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.