Home / 12,096,667.70-18,145,001.55-5,378,203.70

Finding the Fourth Proportional to 12,096,667.70, 18,145,001.55 and 5,378,203.70

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Solution

The fourth proportional to 12,096,667.70, 18,145,001.55 and 5,378,203.70 is: 8,067,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,667.70 : 18,145,001.55 = 5,378,203.70 : x
  2. Step 2: Convert to fraction form
    12,096,667.70/18,145,001.55 = 5,378,203.70/x
  3. Step 3: Cross multiply
    12,096,667.70x = 18,145,001.55 × 5,378,203.70
  4. Step 4: Simplify right side
    12,096,667.70x = 97,587,514,472,715.75
  5. Step 5: Solve for x
    x = 97,587,514,472,715.75/12,096,667.70
  6. Step 6: Final answer
    x = 8,067,305.55

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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.