Home / 78,080,613.18-107,751,256.39-43,275,550.65

Finding the Fourth Proportional to 78,080,613.18, 107,751,256.39 and 43,275,550.65

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Solution

The fourth proportional to 78,080,613.18, 107,751,256.39 and 43,275,550.65 is: 59,720,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080,613.18 : 107,751,256.39 = 43,275,550.65 : x
  2. Step 2: Convert to fraction form
    78,080,613.18/107,751,256.39 = 43,275,550.65/x
  3. Step 3: Cross multiply
    78,080,613.18x = 107,751,256.39 × 43,275,550.65
  4. Step 4: Simplify right side
    78,080,613.18x = 4,662,994,953,506,581
  5. Step 5: Solve for x
    x = 4,662,994,953,506,581/78,080,613.18
  6. Step 6: Final answer
    x = 59,720,265.55

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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.