Home / 91,145,110.40-136,717,665.60-84,224,508.80

Finding the Fourth Proportional to 91,145,110.40, 136,717,665.60 and 84,224,508.80

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Solution

The fourth proportional to 91,145,110.40, 136,717,665.60 and 84,224,508.80 is: 126,336,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,145,110.40 : 136,717,665.60 = 84,224,508.80 : x
  2. Step 2: Convert to fraction form
    91,145,110.40/136,717,665.60 = 84,224,508.80/x
  3. Step 3: Cross multiply
    91,145,110.40x = 136,717,665.60 × 84,224,508.80
  4. Step 4: Simplify right side
    91,145,110.40x = 11,514,978,229,442,656
  5. Step 5: Solve for x
    x = 11,514,978,229,442,656/91,145,110.40
  6. Step 6: Final answer
    x = 126,336,763.20

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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.