Home / 74,687,612.20-112,031,418.30-71,817,830.80

Finding the Fourth Proportional to 74,687,612.20, 112,031,418.30 and 71,817,830.80

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Solution

The fourth proportional to 74,687,612.20, 112,031,418.30 and 71,817,830.80 is: 107,726,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687,612.20 : 112,031,418.30 = 71,817,830.80 : x
  2. Step 2: Convert to fraction form
    74,687,612.20/112,031,418.30 = 71,817,830.80/x
  3. Step 3: Cross multiply
    74,687,612.20x = 112,031,418.30 × 71,817,830.80
  4. Step 4: Simplify right side
    74,687,612.20x = 8,045,853,443,753,423
  5. Step 5: Solve for x
    x = 8,045,853,443,753,423/74,687,612.20
  6. Step 6: Final answer
    x = 107,726,746.20

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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.