Home / 215,965,149.80-323,976,140.70-79,746,218.60

Finding the Fourth Proportional to 215,965,149.80, 323,976,140.70 and 79,746,218.60

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Solution

The fourth proportional to 215,965,149.80, 323,976,140.70 and 79,746,218.60 is: 119,629,820.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,965,149.80 : 323,976,140.70 = 79,746,218.60 : x
  2. Step 2: Convert to fraction form
    215,965,149.80/323,976,140.70 = 79,746,218.60/x
  3. Step 3: Cross multiply
    215,965,149.80x = 323,976,140.70 × 79,746,218.60
  4. Step 4: Simplify right side
    215,965,149.80x = 25,835,872,137,446,556
  5. Step 5: Solve for x
    x = 25,835,872,137,446,556/215,965,149.80
  6. Step 6: Final answer
    x = 119,629,820.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.