Home / 15,444,079.20-21,315,387.60-8,570,769.12

Finding the Fourth Proportional to 15,444,079.20, 21,315,387.60 and 8,570,769.12

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Solution

The fourth proportional to 15,444,079.20, 21,315,387.60 and 8,570,769.12 is: 11,829,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444,079.20 : 21,315,387.60 = 8,570,769.12 : x
  2. Step 2: Convert to fraction form
    15,444,079.20/21,315,387.60 = 8,570,769.12/x
  3. Step 3: Cross multiply
    15,444,079.20x = 21,315,387.60 × 8,570,769.12
  4. Step 4: Simplify right side
    15,444,079.20x = 182,689,265,822,910.91
  5. Step 5: Solve for x
    x = 182,689,265,822,910.91/15,444,079.20
  6. Step 6: Final answer
    x = 11,829,081.13

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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.