Home / 28,479,744.47-39,302,236.07-15,427,003.38

Finding the Fourth Proportional to 28,479,744.47, 39,302,236.07 and 15,427,003.38

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Solution

The fourth proportional to 28,479,744.47, 39,302,236.07 and 15,427,003.38 is: 21,289,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,744.47 : 39,302,236.07 = 15,427,003.38 : x
  2. Step 2: Convert to fraction form
    28,479,744.47/39,302,236.07 = 15,427,003.38/x
  3. Step 3: Cross multiply
    28,479,744.47x = 39,302,236.07 × 15,427,003.38
  4. Step 4: Simplify right side
    28,479,744.47x = 606,315,728,616,312.88
  5. Step 5: Solve for x
    x = 606,315,728,616,312.88/28,479,744.47
  6. Step 6: Final answer
    x = 21,289,366.88

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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.