Home / 80,385,586.72-120,585,572.84-31,200,286.93

Finding the Fourth Proportional to 80,385,586.72, 120,585,572.84 and 31,200,286.93

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Solution

The fourth proportional to 80,385,586.72, 120,585,572.84 and 31,200,286.93 is: 46,803,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,385,586.72 : 120,585,572.84 = 31,200,286.93 : x
  2. Step 2: Convert to fraction form
    80,385,586.72/120,585,572.84 = 31,200,286.93/x
  3. Step 3: Cross multiply
    80,385,586.72x = 120,585,572.84 × 31,200,286.93
  4. Step 4: Simplify right side
    80,385,586.72x = 3,762,304,472,002,951.50
  5. Step 5: Solve for x
    x = 3,762,304,472,002,951.50/80,385,586.72
  6. Step 6: Final answer
    x = 46,803,222.14

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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.