Home / 78,080,646.66-107,751,302.61-43,275,584.18

Finding the Fourth Proportional to 78,080,646.66, 107,751,302.61 and 43,275,584.18

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Solution

The fourth proportional to 78,080,646.66, 107,751,302.61 and 43,275,584.18 is: 59,720,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080,646.66 : 107,751,302.61 = 43,275,584.18 : x
  2. Step 2: Convert to fraction form
    78,080,646.66/107,751,302.61 = 43,275,584.18/x
  3. Step 3: Cross multiply
    78,080,646.66x = 107,751,302.61 × 43,275,584.18
  4. Step 4: Simplify right side
    78,080,646.66x = 4,663,000,566,603,709
  5. Step 5: Solve for x
    x = 4,663,000,566,603,709/78,080,646.66
  6. Step 6: Final answer
    x = 59,720,311.83

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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.