Home / 28,485,732.28-39,310,257.36-15,433,315.60

Finding the Fourth Proportional to 28,485,732.28, 39,310,257.36 and 15,433,315.60

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Solution

The fourth proportional to 28,485,732.28, 39,310,257.36 and 15,433,315.60 is: 21,297,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485,732.28 : 39,310,257.36 = 15,433,315.60 : x
  2. Step 2: Convert to fraction form
    28,485,732.28/39,310,257.36 = 15,433,315.60/x
  3. Step 3: Cross multiply
    28,485,732.28x = 39,310,257.36 × 15,433,315.60
  4. Step 4: Simplify right side
    28,485,732.28x = 606,687,608,154,102.75
  5. Step 5: Solve for x
    x = 606,687,608,154,102.75/28,485,732.28
  6. Step 6: Final answer
    x = 21,297,946.71

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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.