Home / 8,305,123.70-12,457,685.55-8,137,162.10

Finding the Fourth Proportional to 8,305,123.70, 12,457,685.55 and 8,137,162.10

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Solution

The fourth proportional to 8,305,123.70, 12,457,685.55 and 8,137,162.10 is: 12,205,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,123.70 : 12,457,685.55 = 8,137,162.10 : x
  2. Step 2: Convert to fraction form
    8,305,123.70/12,457,685.55 = 8,137,162.10/x
  3. Step 3: Cross multiply
    8,305,123.70x = 12,457,685.55 × 8,137,162.10
  4. Step 4: Simplify right side
    8,305,123.70x = 101,370,206,711,177.66
  5. Step 5: Solve for x
    x = 101,370,206,711,177.66/8,305,123.70
  6. Step 6: Final answer
    x = 12,205,743.15

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Double scale
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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.