Home / 20,715,446.52-28,589,017.92-11,424,833.64

Finding the Fourth Proportional to 20,715,446.52, 28,589,017.92 and 11,424,833.64

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Solution

The fourth proportional to 20,715,446.52, 28,589,017.92 and 11,424,833.64 is: 15,767,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,446.52 : 28,589,017.92 = 11,424,833.64 : x
  2. Step 2: Convert to fraction form
    20,715,446.52/28,589,017.92 = 11,424,833.64/x
  3. Step 3: Cross multiply
    20,715,446.52x = 28,589,017.92 × 11,424,833.64
  4. Step 4: Simplify right side
    20,715,446.52x = 326,624,773,666,978.88
  5. Step 5: Solve for x
    x = 326,624,773,666,978.88/20,715,446.52
  6. Step 6: Final answer
    x = 15,767,208.94

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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.