Home / 18,654,109.60-25,742,723.56-10,815,145.28

Finding the Fourth Proportional to 18,654,109.60, 25,742,723.56 and 10,815,145.28

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Solution

The fourth proportional to 18,654,109.60, 25,742,723.56 and 10,815,145.28 is: 14,924,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654,109.60 : 25,742,723.56 = 10,815,145.28 : x
  2. Step 2: Convert to fraction form
    18,654,109.60/25,742,723.56 = 10,815,145.28/x
  3. Step 3: Cross multiply
    18,654,109.60x = 25,742,723.56 × 10,815,145.28
  4. Step 4: Simplify right side
    18,654,109.60x = 278,411,295,204,278.75
  5. Step 5: Solve for x
    x = 278,411,295,204,278.75/18,654,109.60
  6. Step 6: Final answer
    x = 14,924,930.82

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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.