Home / 15,047,972.07-20,766,323.48-8,172,503.34

Finding the Fourth Proportional to 15,047,972.07, 20,766,323.48 and 8,172,503.34

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Solution

The fourth proportional to 15,047,972.07, 20,766,323.48 and 8,172,503.34 is: 11,278,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,972.07 : 20,766,323.48 = 8,172,503.34 : x
  2. Step 2: Convert to fraction form
    15,047,972.07/20,766,323.48 = 8,172,503.34/x
  3. Step 3: Cross multiply
    15,047,972.07x = 20,766,323.48 × 8,172,503.34
  4. Step 4: Simplify right side
    15,047,972.07x = 169,712,847,958,957.91
  5. Step 5: Solve for x
    x = 169,712,847,958,957.91/15,047,972.07
  6. Step 6: Final answer
    x = 11,278,120.88

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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.