Home / 47,921,340.30-71,882,010.45-19,188,096.90

Finding the Fourth Proportional to 47,921,340.30, 71,882,010.45 and 19,188,096.90

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Solution

The fourth proportional to 47,921,340.30, 71,882,010.45 and 19,188,096.90 is: 28,782,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921,340.30 : 71,882,010.45 = 19,188,096.90 : x
  2. Step 2: Convert to fraction form
    47,921,340.30/71,882,010.45 = 19,188,096.90/x
  3. Step 3: Cross multiply
    47,921,340.30x = 71,882,010.45 × 19,188,096.90
  4. Step 4: Simplify right side
    47,921,340.30x = 1,379,278,981,881,412.50
  5. Step 5: Solve for x
    x = 1,379,278,981,881,412.50/47,921,340.30
  6. Step 6: Final answer
    x = 28,782,145.35

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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.