Home / 19,321,233.38-28,981,850.10-7,190,381.78

Finding the Fourth Proportional to 19,321,233.38, 28,981,850.10 and 7,190,381.78

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Solution

The fourth proportional to 19,321,233.38, 28,981,850.10 and 7,190,381.78 is: 10,785,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321,233.38 : 28,981,850.10 = 7,190,381.78 : x
  2. Step 2: Convert to fraction form
    19,321,233.38/28,981,850.10 = 7,190,381.78/x
  3. Step 3: Cross multiply
    19,321,233.38x = 28,981,850.10 × 7,190,381.78
  4. Step 4: Simplify right side
    19,321,233.38x = 208,390,566,909,731.19
  5. Step 5: Solve for x
    x = 208,390,566,909,731.19/19,321,233.38
  6. Step 6: Final answer
    x = 10,785,572.68

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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.