Home / 42,008,530.20-62,987,912.10-21,853,138.20

Finding the Fourth Proportional to 42,008,530.20, 62,987,912.10 and 21,853,138.20

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Solution

The fourth proportional to 42,008,530.20, 62,987,912.10 and 21,853,138.20 is: 32,766,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008,530.20 : 62,987,912.10 = 21,853,138.20 : x
  2. Step 2: Convert to fraction form
    42,008,530.20/62,987,912.10 = 21,853,138.20/x
  3. Step 3: Cross multiply
    42,008,530.20x = 62,987,912.10 × 21,853,138.20
  4. Step 4: Simplify right side
    42,008,530.20x = 1,376,483,548,050,752.25
  5. Step 5: Solve for x
    x = 1,376,483,548,050,752.25/42,008,530.20
  6. Step 6: Final answer
    x = 32,766,762.88

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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.