Home / 121,279,663.80-181,982,481.30-53,129,244.60

Finding the Fourth Proportional to 121,279,663.80, 181,982,481.30 and 53,129,244.60

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Solution

The fourth proportional to 121,279,663.80, 181,982,481.30 and 53,129,244.60 is: 79,721,459.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279,663.80 : 181,982,481.30 = 53,129,244.60 : x
  2. Step 2: Convert to fraction form
    121,279,663.80/181,982,481.30 = 53,129,244.60/x
  3. Step 3: Cross multiply
    121,279,663.80x = 181,982,481.30 × 53,129,244.60
  4. Step 4: Simplify right side
    121,279,663.80x = 9,668,591,761,902,626
  5. Step 5: Solve for x
    x = 9,668,591,761,902,626/121,279,663.80
  6. Step 6: Final answer
    x = 79,721,459.14

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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.