Home / 263,342,405.80-395,013,608.70-81,588,140.20

Finding the Fourth Proportional to 263,342,405.80, 395,013,608.70 and 81,588,140.20

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Solution

The fourth proportional to 263,342,405.80, 395,013,608.70 and 81,588,140.20 is: 122,382,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,342,405.80 : 395,013,608.70 = 81,588,140.20 : x
  2. Step 2: Convert to fraction form
    263,342,405.80/395,013,608.70 = 81,588,140.20/x
  3. Step 3: Cross multiply
    263,342,405.80x = 395,013,608.70 × 81,588,140.20
  4. Step 4: Simplify right side
    263,342,405.80x = 32,228,425,687,523,540
  5. Step 5: Solve for x
    x = 32,228,425,687,523,540/263,342,405.80
  6. Step 6: Final answer
    x = 122,382,210.30

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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.