Home / 80,432,885.10-120,680,820.45-29,320,070.70

Finding the Fourth Proportional to 80,432,885.10, 120,680,820.45 and 29,320,070.70

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Solution

The fourth proportional to 80,432,885.10, 120,680,820.45 and 29,320,070.70 is: 43,991,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,432,885.10 : 120,680,820.45 = 29,320,070.70 : x
  2. Step 2: Convert to fraction form
    80,432,885.10/120,680,820.45 = 29,320,070.70/x
  3. Step 3: Cross multiply
    80,432,885.10x = 120,680,820.45 × 29,320,070.70
  4. Step 4: Simplify right side
    80,432,885.10x = 3,538,370,187,728,006
  5. Step 5: Solve for x
    x = 3,538,370,187,728,006/80,432,885.10
  6. Step 6: Final answer
    x = 43,991,586.07

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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.