Home / 18,972,250.20-28,442,428.02-15,369,081.72

Finding the Fourth Proportional to 18,972,250.20, 28,442,428.02 and 15,369,081.72

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Solution

The fourth proportional to 18,972,250.20, 28,442,428.02 and 15,369,081.72 is: 23,040,703.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972,250.20 : 28,442,428.02 = 15,369,081.72 : x
  2. Step 2: Convert to fraction form
    18,972,250.20/28,442,428.02 = 15,369,081.72/x
  3. Step 3: Cross multiply
    18,972,250.20x = 28,442,428.02 × 15,369,081.72
  4. Step 4: Simplify right side
    18,972,250.20x = 437,134,000,554,597.81
  5. Step 5: Solve for x
    x = 437,134,000,554,597.81/18,972,250.20
  6. Step 6: Final answer
    x = 23,040,703.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.