Home / 12,948,816.18-17,869,363.62-7,147,596.38

Finding the Fourth Proportional to 12,948,816.18, 17,869,363.62 and 7,147,596.38

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Solution

The fourth proportional to 12,948,816.18, 17,869,363.62 and 7,147,596.38 is: 9,863,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,816.18 : 17,869,363.62 = 7,147,596.38 : x
  2. Step 2: Convert to fraction form
    12,948,816.18/17,869,363.62 = 7,147,596.38/x
  3. Step 3: Cross multiply
    12,948,816.18x = 17,869,363.62 × 7,147,596.38
  4. Step 4: Simplify right side
    12,948,816.18x = 127,722,998,723,215.70
  5. Step 5: Solve for x
    x = 127,722,998,723,215.70/12,948,816.18
  6. Step 6: Final answer
    x = 9,863,681.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.