Home / 28,591,725.20-39,456,885.48-15,538,984.79

Finding the Fourth Proportional to 28,591,725.20, 39,456,885.48 and 15,538,984.79

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Solution

The fourth proportional to 28,591,725.20, 39,456,885.48 and 15,538,984.79 is: 21,443,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591,725.20 : 39,456,885.48 = 15,538,984.79 : x
  2. Step 2: Convert to fraction form
    28,591,725.20/39,456,885.48 = 15,538,984.79/x
  3. Step 3: Cross multiply
    28,591,725.20x = 39,456,885.48 × 15,538,984.79
  4. Step 4: Simplify right side
    28,591,725.20x = 613,119,943,334,491.75
  5. Step 5: Solve for x
    x = 613,119,943,334,491.75/28,591,725.20
  6. Step 6: Final answer
    x = 21,443,964.61

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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.