Home / 78,406,135.77-108,200,556.41-43,598,078.87

Finding the Fourth Proportional to 78,406,135.77, 108,200,556.41 and 43,598,078.87

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Solution

The fourth proportional to 78,406,135.77, 108,200,556.41 and 43,598,078.87 is: 60,165,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,406,135.77 : 108,200,556.41 = 43,598,078.87 : x
  2. Step 2: Convert to fraction form
    78,406,135.77/108,200,556.41 = 43,598,078.87/x
  3. Step 3: Cross multiply
    78,406,135.77x = 108,200,556.41 × 43,598,078.87
  4. Step 4: Simplify right side
    78,406,135.77x = 4,717,336,392,193,575
  5. Step 5: Solve for x
    x = 4,717,336,392,193,575/78,406,135.77
  6. Step 6: Final answer
    x = 60,165,398.36

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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.