Home / 76,278,991.26-114,406,228.76-20,933,895.16

Finding the Fourth Proportional to 76,278,991.26, 114,406,228.76 and 20,933,895.16

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Solution

The fourth proportional to 76,278,991.26, 114,406,228.76 and 20,933,895.16 is: 31,397,478.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,278,991.26 : 114,406,228.76 = 20,933,895.16 : x
  2. Step 2: Convert to fraction form
    76,278,991.26/114,406,228.76 = 20,933,895.16/x
  3. Step 3: Cross multiply
    76,278,991.26x = 114,406,228.76 × 20,933,895.16
  4. Step 4: Simplify right side
    76,278,991.26x = 2,394,967,998,512,817
  5. Step 5: Solve for x
    x = 2,394,967,998,512,817/76,278,991.26
  6. Step 6: Final answer
    x = 31,397,478.64

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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.