Home / 20,578,269.28-28,398,532.98-11,286,209.26

Finding the Fourth Proportional to 20,578,269.28, 28,398,532.98 and 11,286,209.26

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Solution

The fourth proportional to 20,578,269.28, 28,398,532.98 and 11,286,209.26 is: 15,575,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578,269.28 : 28,398,532.98 = 11,286,209.26 : x
  2. Step 2: Convert to fraction form
    20,578,269.28/28,398,532.98 = 11,286,209.26/x
  3. Step 3: Cross multiply
    20,578,269.28x = 28,398,532.98 × 11,286,209.26
  4. Step 4: Simplify right side
    20,578,269.28x = 320,511,785,889,291.38
  5. Step 5: Solve for x
    x = 320,511,785,889,291.38/20,578,269.28
  6. Step 6: Final answer
    x = 15,575,254.73

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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.