Home / 20,368,733.80-28,109,591.78-11,668,587.88

Finding the Fourth Proportional to 20,368,733.80, 28,109,591.78 and 11,668,587.88

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Solution

The fourth proportional to 20,368,733.80, 28,109,591.78 and 11,668,587.88 is: 16,103,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,733.80 : 28,109,591.78 = 11,668,587.88 : x
  2. Step 2: Convert to fraction form
    20,368,733.80/28,109,591.78 = 11,668,587.88/x
  3. Step 3: Cross multiply
    20,368,733.80x = 28,109,591.78 × 11,668,587.88
  4. Step 4: Simplify right side
    20,368,733.80x = 327,999,241,897,512.69
  5. Step 5: Solve for x
    x = 327,999,241,897,512.69/20,368,733.80
  6. Step 6: Final answer
    x = 16,103,074.70

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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.