Home / 15,920,998.92-21,969,460.69-9,307,133.65

Finding the Fourth Proportional to 15,920,998.92, 21,969,460.69 and 9,307,133.65

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Solution

The fourth proportional to 15,920,998.92, 21,969,460.69 and 9,307,133.65 is: 12,842,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920,998.92 : 21,969,460.69 = 9,307,133.65 : x
  2. Step 2: Convert to fraction form
    15,920,998.92/21,969,460.69 = 9,307,133.65/x
  3. Step 3: Cross multiply
    15,920,998.92x = 21,969,460.69 × 9,307,133.65
  4. Step 4: Simplify right side
    15,920,998.92x = 204,472,706,860,251.25
  5. Step 5: Solve for x
    x = 204,472,706,860,251.25/15,920,998.92
  6. Step 6: Final answer
    x = 12,842,957.15

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Double scale
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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.