Home / 6,439,939.20-9,659,908.80-5,953,334.40

Finding the Fourth Proportional to 6,439,939.20, 9,659,908.80 and 5,953,334.40

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Solution

The fourth proportional to 6,439,939.20, 9,659,908.80 and 5,953,334.40 is: 8,930,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,939.20 : 9,659,908.80 = 5,953,334.40 : x
  2. Step 2: Convert to fraction form
    6,439,939.20/9,659,908.80 = 5,953,334.40/x
  3. Step 3: Cross multiply
    6,439,939.20x = 9,659,908.80 × 5,953,334.40
  4. Step 4: Simplify right side
    6,439,939.20x = 57,508,667,359,902.73
  5. Step 5: Solve for x
    x = 57,508,667,359,902.73/6,439,939.20
  6. Step 6: Final answer
    x = 8,930,001.60

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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.