Home / 12,528,067.70-18,792,101.55-6,543,658.10

Finding the Fourth Proportional to 12,528,067.70, 18,792,101.55 and 6,543,658.10

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Solution

The fourth proportional to 12,528,067.70, 18,792,101.55 and 6,543,658.10 is: 9,815,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,067.70 : 18,792,101.55 = 6,543,658.10 : x
  2. Step 2: Convert to fraction form
    12,528,067.70/18,792,101.55 = 6,543,658.10/x
  3. Step 3: Cross multiply
    12,528,067.70x = 18,792,101.55 × 6,543,658.10
  4. Step 4: Simplify right side
    12,528,067.70x = 122,969,087,523,680.05
  5. Step 5: Solve for x
    x = 122,969,087,523,680.05/12,528,067.70
  6. Step 6: Final answer
    x = 9,815,487.15

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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.