Home / 71,148,883.38-106,729,626.87-20,031,345.06

Finding the Fourth Proportional to 71,148,883.38, 106,729,626.87 and 20,031,345.06

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Solution

The fourth proportional to 71,148,883.38, 106,729,626.87 and 20,031,345.06 is: 30,048,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,148,883.38 : 106,729,626.87 = 20,031,345.06 : x
  2. Step 2: Convert to fraction form
    71,148,883.38/106,729,626.87 = 20,031,345.06/x
  3. Step 3: Cross multiply
    71,148,883.38x = 106,729,626.87 × 20,031,345.06
  4. Step 4: Simplify right side
    71,148,883.38x = 2,137,937,983,958,017.75
  5. Step 5: Solve for x
    x = 2,137,937,983,958,017.75/71,148,883.38
  6. Step 6: Final answer
    x = 30,048,791.81

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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.