Home / 12,474,159.40-18,711,239.10-7,687,253.80

Finding the Fourth Proportional to 12,474,159.40, 18,711,239.10 and 7,687,253.80

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Solution

The fourth proportional to 12,474,159.40, 18,711,239.10 and 7,687,253.80 is: 11,530,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,159.40 : 18,711,239.10 = 7,687,253.80 : x
  2. Step 2: Convert to fraction form
    12,474,159.40/18,711,239.10 = 7,687,253.80/x
  3. Step 3: Cross multiply
    12,474,159.40x = 18,711,239.10 × 7,687,253.80
  4. Step 4: Simplify right side
    12,474,159.40x = 143,838,043,874,183.59
  5. Step 5: Solve for x
    x = 143,838,043,874,183.59/12,474,159.40
  6. Step 6: Final answer
    x = 11,530,880.70

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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.