Home / 84,168,778.08-126,289,538.75-45,261,755.26

Finding the Fourth Proportional to 84,168,778.08, 126,289,538.75 and 45,261,755.26

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Solution

The fourth proportional to 84,168,778.08, 126,289,538.75 and 45,261,755.26 is: 67,912,191.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,168,778.08 : 126,289,538.75 = 45,261,755.26 : x
  2. Step 2: Convert to fraction form
    84,168,778.08/126,289,538.75 = 45,261,755.26/x
  3. Step 3: Cross multiply
    84,168,778.08x = 126,289,538.75 × 45,261,755.26
  4. Step 4: Simplify right side
    84,168,778.08x = 5,716,086,194,800,786
  5. Step 5: Solve for x
    x = 5,716,086,194,800,786/84,168,778.08
  6. Step 6: Final answer
    x = 67,912,191.73

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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.