Home / 12,248,139.60-18,372,209.40-8,421,764.40

Finding the Fourth Proportional to 12,248,139.60, 18,372,209.40 and 8,421,764.40

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Solution

The fourth proportional to 12,248,139.60, 18,372,209.40 and 8,421,764.40 is: 12,632,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248,139.60 : 18,372,209.40 = 8,421,764.40 : x
  2. Step 2: Convert to fraction form
    12,248,139.60/18,372,209.40 = 8,421,764.40/x
  3. Step 3: Cross multiply
    12,248,139.60x = 18,372,209.40 × 8,421,764.40
  4. Step 4: Simplify right side
    12,248,139.60x = 154,726,419,074,265.34
  5. Step 5: Solve for x
    x = 154,726,419,074,265.34/12,248,139.60
  6. Step 6: Final answer
    x = 12,632,646.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.