Home / 103,502,575.20-155,121,986.70-55,003,663.20

Finding the Fourth Proportional to 103,502,575.20, 155,121,986.70 and 55,003,663.20

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Solution

The fourth proportional to 103,502,575.20, 155,121,986.70 and 55,003,663.20 is: 82,435,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,502,575.20 : 155,121,986.70 = 55,003,663.20 : x
  2. Step 2: Convert to fraction form
    103,502,575.20/155,121,986.70 = 55,003,663.20/x
  3. Step 3: Cross multiply
    103,502,575.20x = 155,121,986.70 × 55,003,663.20
  4. Step 4: Simplify right side
    103,502,575.20x = 8,532,277,511,361,679
  5. Step 5: Solve for x
    x = 8,532,277,511,361,679/103,502,575.20
  6. Step 6: Final answer
    x = 82,435,412.79

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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.