Home / 78,080,646.16-107,751,301.92-43,275,583.68

Finding the Fourth Proportional to 78,080,646.16, 107,751,301.92 and 43,275,583.68

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Solution

The fourth proportional to 78,080,646.16, 107,751,301.92 and 43,275,583.68 is: 59,720,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080,646.16 : 107,751,301.92 = 43,275,583.68 : x
  2. Step 2: Convert to fraction form
    78,080,646.16/107,751,301.92 = 43,275,583.68/x
  3. Step 3: Cross multiply
    78,080,646.16x = 107,751,301.92 × 43,275,583.68
  4. Step 4: Simplify right side
    78,080,646.16x = 4,663,000,482,867,905
  5. Step 5: Solve for x
    x = 4,663,000,482,867,905/78,080,646.16
  6. Step 6: Final answer
    x = 59,720,311.14

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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.