Home / 20,542,649.59-28,348,507.87-11,375,095.51

Finding the Fourth Proportional to 20,542,649.59, 28,348,507.87 and 11,375,095.51

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Solution

The fourth proportional to 20,542,649.59, 28,348,507.87 and 11,375,095.51 is: 15,697,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542,649.59 : 28,348,507.87 = 11,375,095.51 : x
  2. Step 2: Convert to fraction form
    20,542,649.59/28,348,507.87 = 11,375,095.51/x
  3. Step 3: Cross multiply
    20,542,649.59x = 28,348,507.87 × 11,375,095.51
  4. Step 4: Simplify right side
    20,542,649.59x = 322,466,984,587,236.69
  5. Step 5: Solve for x
    x = 322,466,984,587,236.69/20,542,649.59
  6. Step 6: Final answer
    x = 15,697,438.79

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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.