Home / 324,489,707.32-486,734,562.60-78,845,080

Finding the Fourth Proportional to 324,489,707.32, 486,734,562.60 and 78,845,080

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Solution

The fourth proportional to 324,489,707.32, 486,734,562.60 and 78,845,080 is: 118,267,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,489,707.32 : 486,734,562.60 = 78,845,080 : x
  2. Step 2: Convert to fraction form
    324,489,707.32/486,734,562.60 = 78,845,080/x
  3. Step 3: Cross multiply
    324,489,707.32x = 486,734,562.60 × 78,845,080
  4. Step 4: Simplify right side
    324,489,707.32x = 38,376,625,526,962,008
  5. Step 5: Solve for x
    x = 38,376,625,526,962,008/324,489,707.32
  6. Step 6: Final answer
    x = 118,267,620.39

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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.