Home / 21,981,532.80-32,956,939.20-13,001,462.40

Finding the Fourth Proportional to 21,981,532.80, 32,956,939.20 and 13,001,462.40

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Solution

The fourth proportional to 21,981,532.80, 32,956,939.20 and 13,001,462.40 is: 19,493,108.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981,532.80 : 32,956,939.20 = 13,001,462.40 : x
  2. Step 2: Convert to fraction form
    21,981,532.80/32,956,939.20 = 13,001,462.40/x
  3. Step 3: Cross multiply
    21,981,532.80x = 32,956,939.20 × 13,001,462.40
  4. Step 4: Simplify right side
    21,981,532.80x = 428,488,405,827,886.06
  5. Step 5: Solve for x
    x = 428,488,405,827,886.06/21,981,532.80
  6. Step 6: Final answer
    x = 19,493,108.59

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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.