Home / 108,815,512.20-163,010,691.90-65,556,214.80

Finding the Fourth Proportional to 108,815,512.20, 163,010,691.90 and 65,556,214.80

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Solution

The fourth proportional to 108,815,512.20, 163,010,691.90 and 65,556,214.80 is: 98,206,254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,815,512.20 : 163,010,691.90 = 65,556,214.80 : x
  2. Step 2: Convert to fraction form
    108,815,512.20/163,010,691.90 = 65,556,214.80/x
  3. Step 3: Cross multiply
    108,815,512.20x = 163,010,691.90 × 65,556,214.80
  4. Step 4: Simplify right side
    108,815,512.20x = 10,686,363,932,893,020
  5. Step 5: Solve for x
    x = 10,686,363,932,893,020/108,815,512.20
  6. Step 6: Final answer
    x = 98,206,254.94

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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.