Home / 80,745,381.20-120,973,729.80-49,138,857.20

Finding the Fourth Proportional to 80,745,381.20, 120,973,729.80 and 49,138,857.20

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Solution

The fourth proportional to 80,745,381.20, 120,973,729.80 and 49,138,857.20 is: 73,620,444.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,745,381.20 : 120,973,729.80 = 49,138,857.20 : x
  2. Step 2: Convert to fraction form
    80,745,381.20/120,973,729.80 = 49,138,857.20/x
  3. Step 3: Cross multiply
    80,745,381.20x = 120,973,729.80 × 49,138,857.20
  4. Step 4: Simplify right side
    80,745,381.20x = 5,944,510,833,593,585
  5. Step 5: Solve for x
    x = 5,944,510,833,593,585/80,745,381.20
  6. Step 6: Final answer
    x = 73,620,444.23

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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.