Home / 20,246,604.70-30,369,907.05-18,687,711.10

Finding the Fourth Proportional to 20,246,604.70, 30,369,907.05 and 18,687,711.10

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Solution

The fourth proportional to 20,246,604.70, 30,369,907.05 and 18,687,711.10 is: 28,031,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246,604.70 : 30,369,907.05 = 18,687,711.10 : x
  2. Step 2: Convert to fraction form
    20,246,604.70/30,369,907.05 = 18,687,711.10/x
  3. Step 3: Cross multiply
    20,246,604.70x = 30,369,907.05 × 18,687,711.10
  4. Step 4: Simplify right side
    20,246,604.70x = 567,544,049,084,253.38
  5. Step 5: Solve for x
    x = 567,544,049,084,253.38/20,246,604.70
  6. Step 6: Final answer
    x = 28,031,566.65

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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.