Home / 18,452,117.70-27,678,176.55-7,665,833.70

Finding the Fourth Proportional to 18,452,117.70, 27,678,176.55 and 7,665,833.70

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Solution

The fourth proportional to 18,452,117.70, 27,678,176.55 and 7,665,833.70 is: 11,498,750.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,452,117.70 : 27,678,176.55 = 7,665,833.70 : x
  2. Step 2: Convert to fraction form
    18,452,117.70/27,678,176.55 = 7,665,833.70/x
  3. Step 3: Cross multiply
    18,452,117.70x = 27,678,176.55 × 7,665,833.70
  4. Step 4: Simplify right side
    18,452,117.70x = 212,176,298,551,539.75
  5. Step 5: Solve for x
    x = 212,176,298,551,539.75/18,452,117.70
  6. Step 6: Final answer
    x = 11,498,750.55

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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.