Home / 20,587,425.60-28,414,054.56-11,423,020.80

Finding the Fourth Proportional to 20,587,425.60, 28,414,054.56 and 11,423,020.80

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Solution

The fourth proportional to 20,587,425.60, 28,414,054.56 and 11,423,020.80 is: 15,765,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,425.60 : 28,414,054.56 = 11,423,020.80 : x
  2. Step 2: Convert to fraction form
    20,587,425.60/28,414,054.56 = 11,423,020.80/x
  3. Step 3: Cross multiply
    20,587,425.60x = 28,414,054.56 × 11,423,020.80
  4. Step 4: Simplify right side
    20,587,425.60x = 324,574,336,251,214.88
  5. Step 5: Solve for x
    x = 324,574,336,251,214.88/20,587,425.60
  6. Step 6: Final answer
    x = 15,765,659.22

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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.