Home / 80,040,598.20-120,060,942.10-56,212,445.88

Finding the Fourth Proportional to 80,040,598.20, 120,060,942.10 and 56,212,445.88

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Solution

The fourth proportional to 80,040,598.20, 120,060,942.10 and 56,212,445.88 is: 84,318,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,040,598.20 : 120,060,942.10 = 56,212,445.88 : x
  2. Step 2: Convert to fraction form
    80,040,598.20/120,060,942.10 = 56,212,445.88/x
  3. Step 3: Cross multiply
    80,040,598.20x = 120,060,942.10 × 56,212,445.88
  4. Step 4: Simplify right side
    80,040,598.20x = 6,748,919,210,098,064
  5. Step 5: Solve for x
    x = 6,748,919,210,098,064/80,040,598.20
  6. Step 6: Final answer
    x = 84,318,700.28

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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.