Home / 80,782,133.32-111,479,247.30-47,754,286.12

Finding the Fourth Proportional to 80,782,133.32, 111,479,247.30 and 47,754,286.12

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Solution

The fourth proportional to 80,782,133.32, 111,479,247.30 and 47,754,286.12 is: 65,900,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,782,133.32 : 111,479,247.30 = 47,754,286.12 : x
  2. Step 2: Convert to fraction form
    80,782,133.32/111,479,247.30 = 47,754,286.12/x
  3. Step 3: Cross multiply
    80,782,133.32x = 111,479,247.30 × 47,754,286.12
  4. Step 4: Simplify right side
    80,782,133.32x = 5,323,611,872,006,437
  5. Step 5: Solve for x
    x = 5,323,611,872,006,437/80,782,133.32
  6. Step 6: Final answer
    x = 65,900,857.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.