Home / 38,665,128.40-57,995,849.40-13,103,630.80

Finding the Fourth Proportional to 38,665,128.40, 57,995,849.40 and 13,103,630.80

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Solution

The fourth proportional to 38,665,128.40, 57,995,849.40 and 13,103,630.80 is: 19,654,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665,128.40 : 57,995,849.40 = 13,103,630.80 : x
  2. Step 2: Convert to fraction form
    38,665,128.40/57,995,849.40 = 13,103,630.80/x
  3. Step 3: Cross multiply
    38,665,128.40x = 57,995,849.40 × 13,103,630.80
  4. Step 4: Simplify right side
    38,665,128.40x = 759,956,198,470,001.50
  5. Step 5: Solve for x
    x = 759,956,198,470,001.50/38,665,128.40
  6. Step 6: Final answer
    x = 19,654,821.54

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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.