Home / 18,654,109.60-25,742,723.55-10,815,145.27

Finding the Fourth Proportional to 18,654,109.60, 25,742,723.55 and 10,815,145.27

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Solution

The fourth proportional to 18,654,109.60, 25,742,723.55 and 10,815,145.27 is: 14,924,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654,109.60 : 25,742,723.55 = 10,815,145.27 : x
  2. Step 2: Convert to fraction form
    18,654,109.60/25,742,723.55 = 10,815,145.27/x
  3. Step 3: Cross multiply
    18,654,109.60x = 25,742,723.55 × 10,815,145.27
  4. Step 4: Simplify right side
    18,654,109.60x = 278,411,294,838,700.09
  5. Step 5: Solve for x
    x = 278,411,294,838,700.09/18,654,109.60
  6. Step 6: Final answer
    x = 14,924,930.80

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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.