Home / 126,327,092.60-189,490,638.90-72,579,380.60

Finding the Fourth Proportional to 126,327,092.60, 189,490,638.90 and 72,579,380.60

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Solution

The fourth proportional to 126,327,092.60, 189,490,638.90 and 72,579,380.60 is: 108,869,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,327,092.60 : 189,490,638.90 = 72,579,380.60 : x
  2. Step 2: Convert to fraction form
    126,327,092.60/189,490,638.90 = 72,579,380.60/x
  3. Step 3: Cross multiply
    126,327,092.60x = 189,490,638.90 × 72,579,380.60
  4. Step 4: Simplify right side
    126,327,092.60x = 13,753,113,200,860,264
  5. Step 5: Solve for x
    x = 13,753,113,200,860,264/126,327,092.60
  6. Step 6: Final answer
    x = 108,869,070.90

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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.