Home / 21,981,474.30-32,956,851.45-13,001,403.90

Finding the Fourth Proportional to 21,981,474.30, 32,956,851.45 and 13,001,403.90

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Solution

The fourth proportional to 21,981,474.30, 32,956,851.45 and 13,001,403.90 is: 19,493,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981,474.30 : 32,956,851.45 = 13,001,403.90 : x
  2. Step 2: Convert to fraction form
    21,981,474.30/32,956,851.45 = 13,001,403.90/x
  3. Step 3: Cross multiply
    21,981,474.30x = 32,956,851.45 × 13,001,403.90
  4. Step 4: Simplify right side
    21,981,474.30x = 428,485,336,973,750.69
  5. Step 5: Solve for x
    x = 428,485,336,973,750.69/21,981,474.30
  6. Step 6: Final answer
    x = 19,493,020.86

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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.