Home / 106,429,730.30-159,644,595.45-80,920,562.30

Finding the Fourth Proportional to 106,429,730.30, 159,644,595.45 and 80,920,562.30

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Solution

The fourth proportional to 106,429,730.30, 159,644,595.45 and 80,920,562.30 is: 121,380,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,429,730.30 : 159,644,595.45 = 80,920,562.30 : x
  2. Step 2: Convert to fraction form
    106,429,730.30/159,644,595.45 = 80,920,562.30/x
  3. Step 3: Cross multiply
    106,429,730.30x = 159,644,595.45 × 80,920,562.30
  4. Step 4: Simplify right side
    106,429,730.30x = 12,918,530,431,970,020
  5. Step 5: Solve for x
    x = 12,918,530,431,970,020/106,429,730.30
  6. Step 6: Final answer
    x = 121,380,843.45

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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.