Home / 20,493,566.38-28,280,348.78-11,201,061.12

Finding the Fourth Proportional to 20,493,566.38, 28,280,348.78 and 11,201,061.12

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Solution

The fourth proportional to 20,493,566.38, 28,280,348.78 and 11,201,061.12 is: 15,457,041.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493,566.38 : 28,280,348.78 = 11,201,061.12 : x
  2. Step 2: Convert to fraction form
    20,493,566.38/28,280,348.78 = 11,201,061.12/x
  3. Step 3: Cross multiply
    20,493,566.38x = 28,280,348.78 × 11,201,061.12
  4. Step 4: Simplify right side
    20,493,566.38x = 316,769,915,179,697.44
  5. Step 5: Solve for x
    x = 316,769,915,179,697.44/20,493,566.38
  6. Step 6: Final answer
    x = 15,457,041.95

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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.