Home / 78,067,503.96-107,733,788.01-43,260,775.80

Finding the Fourth Proportional to 78,067,503.96, 107,733,788.01 and 43,260,775.80

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Solution

The fourth proportional to 78,067,503.96, 107,733,788.01 and 43,260,775.80 is: 59,700,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,503.96 : 107,733,788.01 = 43,260,775.80 : x
  2. Step 2: Convert to fraction form
    78,067,503.96/107,733,788.01 = 43,260,775.80/x
  3. Step 3: Cross multiply
    78,067,503.96x = 107,733,788.01 × 43,260,775.80
  4. Step 4: Simplify right side
    78,067,503.96x = 4,660,647,249,185,338
  5. Step 5: Solve for x
    x = 4,660,647,249,185,338/78,067,503.96
  6. Step 6: Final answer
    x = 59,700,221.13

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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.