Home / 10,109,909.80-15,164,864.70-2,921,678.20

Finding the Fourth Proportional to 10,109,909.80, 15,164,864.70 and 2,921,678.20

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Solution

The fourth proportional to 10,109,909.80, 15,164,864.70 and 2,921,678.20 is: 4,382,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,909.80 : 15,164,864.70 = 2,921,678.20 : x
  2. Step 2: Convert to fraction form
    10,109,909.80/15,164,864.70 = 2,921,678.20/x
  3. Step 3: Cross multiply
    10,109,909.80x = 15,164,864.70 × 2,921,678.20
  4. Step 4: Simplify right side
    10,109,909.80x = 44,306,854,599,939.54
  5. Step 5: Solve for x
    x = 44,306,854,599,939.54/10,109,909.80
  6. Step 6: Final answer
    x = 4,382,517.30

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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.