Home / 15,047,972.57-20,766,324.18-8,172,503.84

Finding the Fourth Proportional to 15,047,972.57, 20,766,324.18 and 8,172,503.84

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Solution

The fourth proportional to 15,047,972.57, 20,766,324.18 and 8,172,503.84 is: 11,278,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,972.57 : 20,766,324.18 = 8,172,503.84 : x
  2. Step 2: Convert to fraction form
    15,047,972.57/20,766,324.18 = 8,172,503.84/x
  3. Step 3: Cross multiply
    15,047,972.57x = 20,766,324.18 × 8,172,503.84
  4. Step 4: Simplify right side
    15,047,972.57x = 169,712,863,959,040.72
  5. Step 5: Solve for x
    x = 169,712,863,959,040.72/15,047,972.57
  6. Step 6: Final answer
    x = 11,278,121.57

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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.