Home / 78,941,481.22-108,933,713.79-45,899,386.18

Finding the Fourth Proportional to 78,941,481.22, 108,933,713.79 and 45,899,386.18

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Solution

The fourth proportional to 78,941,481.22, 108,933,713.79 and 45,899,386.18 is: 63,337,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941,481.22 : 108,933,713.79 = 45,899,386.18 : x
  2. Step 2: Convert to fraction form
    78,941,481.22/108,933,713.79 = 45,899,386.18/x
  3. Step 3: Cross multiply
    78,941,481.22x = 108,933,713.79 × 45,899,386.18
  4. Step 4: Simplify right side
    78,941,481.22x = 4,999,990,597,268,802
  5. Step 5: Solve for x
    x = 4,999,990,597,268,802/78,941,481.22
  6. Step 6: Final answer
    x = 63,337,937.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.