Home / 319,788,145.80-479,682,218.70-268,132,080.60

Finding the Fourth Proportional to 319,788,145.80, 479,682,218.70 and 268,132,080.60

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Solution

The fourth proportional to 319,788,145.80, 479,682,218.70 and 268,132,080.60 is: 402,198,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788,145.80 : 479,682,218.70 = 268,132,080.60 : x
  2. Step 2: Convert to fraction form
    319,788,145.80/479,682,218.70 = 268,132,080.60/x
  3. Step 3: Cross multiply
    319,788,145.80x = 479,682,218.70 × 268,132,080.60
  4. Step 4: Simplify right side
    319,788,145.80x = 128,618,191,326,855,216
  5. Step 5: Solve for x
    x = 128,618,191,326,855,216/319,788,145.80
  6. Step 6: Final answer
    x = 402,198,120.90

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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.