Home / 78,691,354.40-118,037,031.60-27,566,730.20

Finding the Fourth Proportional to 78,691,354.40, 118,037,031.60 and 27,566,730.20

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Solution

The fourth proportional to 78,691,354.40, 118,037,031.60 and 27,566,730.20 is: 41,350,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,691,354.40 : 118,037,031.60 = 27,566,730.20 : x
  2. Step 2: Convert to fraction form
    78,691,354.40/118,037,031.60 = 27,566,730.20/x
  3. Step 3: Cross multiply
    78,691,354.40x = 118,037,031.60 × 27,566,730.20
  4. Step 4: Simplify right side
    78,691,354.40x = 3,253,895,003,726,074
  5. Step 5: Solve for x
    x = 3,253,895,003,726,074/78,691,354.40
  6. Step 6: Final answer
    x = 41,350,095.30

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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.