Home / 74,279,101.20-111,418,651.80-55,147,225.20

Finding the Fourth Proportional to 74,279,101.20, 111,418,651.80 and 55,147,225.20

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Solution

The fourth proportional to 74,279,101.20, 111,418,651.80 and 55,147,225.20 is: 82,720,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,279,101.20 : 111,418,651.80 = 55,147,225.20 : x
  2. Step 2: Convert to fraction form
    74,279,101.20/111,418,651.80 = 55,147,225.20/x
  3. Step 3: Cross multiply
    74,279,101.20x = 111,418,651.80 × 55,147,225.20
  4. Step 4: Simplify right side
    74,279,101.20x = 6,144,429,482,294,986
  5. Step 5: Solve for x
    x = 6,144,429,482,294,986/74,279,101.20
  6. Step 6: Final answer
    x = 82,720,837.80

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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.