Home / 137,899,120.32-206,929,156.68-76,539,773.52

Finding the Fourth Proportional to 137,899,120.32, 206,929,156.68 and 76,539,773.52

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Solution

The fourth proportional to 137,899,120.32, 206,929,156.68 and 76,539,773.52 is: 114,854,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,899,120.32 : 206,929,156.68 = 76,539,773.52 : x
  2. Step 2: Convert to fraction form
    137,899,120.32/206,929,156.68 = 76,539,773.52/x
  3. Step 3: Cross multiply
    137,899,120.32x = 206,929,156.68 × 76,539,773.52
  4. Step 4: Simplify right side
    137,899,120.32x = 15,838,310,786,971,794
  5. Step 5: Solve for x
    x = 15,838,310,786,971,794/137,899,120.32
  6. Step 6: Final answer
    x = 114,854,327.93

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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.