Home / 136,987,764.20-205,459,773.04-39,920,766.75

Finding the Fourth Proportional to 136,987,764.20, 205,459,773.04 and 39,920,766.75

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Solution

The fourth proportional to 136,987,764.20, 205,459,773.04 and 39,920,766.75 is: 59,874,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,987,764.20 : 205,459,773.04 = 39,920,766.75 : x
  2. Step 2: Convert to fraction form
    136,987,764.20/205,459,773.04 = 39,920,766.75/x
  3. Step 3: Cross multiply
    136,987,764.20x = 205,459,773.04 × 39,920,766.75
  4. Step 4: Simplify right side
    136,987,764.20x = 8,202,111,676,037,778
  5. Step 5: Solve for x
    x = 8,202,111,676,037,778/136,987,764.20
  6. Step 6: Final answer
    x = 59,874,775.85

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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.