Home / 279,656,500.32-419,486,077.26-85,567,605.84

Finding the Fourth Proportional to 279,656,500.32, 419,486,077.26 and 85,567,605.84

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Solution

The fourth proportional to 279,656,500.32, 419,486,077.26 and 85,567,605.84 is: 128,351,814.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,656,500.32 : 419,486,077.26 = 85,567,605.84 : x
  2. Step 2: Convert to fraction form
    279,656,500.32/419,486,077.26 = 85,567,605.84/x
  3. Step 3: Cross multiply
    279,656,500.32x = 419,486,077.26 × 85,567,605.84
  4. Step 4: Simplify right side
    279,656,500.32x = 35,894,419,314,351,468
  5. Step 5: Solve for x
    x = 35,894,419,314,351,468/279,656,500.32
  6. Step 6: Final answer
    x = 128,351,814.72

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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.