Home / 21,550,221.60-29,739,935.79-11,761,294.38

Finding the Fourth Proportional to 21,550,221.60, 29,739,935.79 and 11,761,294.38

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Solution

The fourth proportional to 21,550,221.60, 29,739,935.79 and 11,761,294.38 is: 16,230,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550,221.60 : 29,739,935.79 = 11,761,294.38 : x
  2. Step 2: Convert to fraction form
    21,550,221.60/29,739,935.79 = 11,761,294.38/x
  3. Step 3: Cross multiply
    21,550,221.60x = 29,739,935.79 × 11,761,294.38
  4. Step 4: Simplify right side
    21,550,221.60x = 349,780,139,668,487.88
  5. Step 5: Solve for x
    x = 349,780,139,668,487.88/21,550,221.60
  6. Step 6: Final answer
    x = 16,230,930.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.