Home / 20,560,700.25-28,386,663.44-13,231,267.74

Finding the Fourth Proportional to 20,560,700.25, 28,386,663.44 and 13,231,267.74

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Solution

The fourth proportional to 20,560,700.25, 28,386,663.44 and 13,231,267.74 is: 18,267,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560,700.25 : 28,386,663.44 = 13,231,267.74 : x
  2. Step 2: Convert to fraction form
    20,560,700.25/28,386,663.44 = 13,231,267.74/x
  3. Step 3: Cross multiply
    20,560,700.25x = 28,386,663.44 × 13,231,267.74
  4. Step 4: Simplify right side
    20,560,700.25x = 375,591,544,153,753.06
  5. Step 5: Solve for x
    x = 375,591,544,153,753.06/20,560,700.25
  6. Step 6: Final answer
    x = 18,267,449.05

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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.