Home / 139,610,988.38-209,144,045.88-108,761,118.90

Finding the Fourth Proportional to 139,610,988.38, 209,144,045.88 and 108,761,118.90

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Solution

The fourth proportional to 139,610,988.38, 209,144,045.88 and 108,761,118.90 is: 162,929,442.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,610,988.38 : 209,144,045.88 = 108,761,118.90 : x
  2. Step 2: Convert to fraction form
    139,610,988.38/209,144,045.88 = 108,761,118.90/x
  3. Step 3: Cross multiply
    139,610,988.38x = 209,144,045.88 × 108,761,118.90
  4. Step 4: Simplify right side
    139,610,988.38x = 22,746,740,441,181,736
  5. Step 5: Solve for x
    x = 22,746,740,441,181,736/139,610,988.38
  6. Step 6: Final answer
    x = 162,929,442.06

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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.