Home / 261,858,274.20-392,773,173.12-80,105,452.20

Finding the Fourth Proportional to 261,858,274.20, 392,773,173.12 and 80,105,452.20

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Solution

The fourth proportional to 261,858,274.20, 392,773,173.12 and 80,105,452.20 is: 120,153,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,858,274.20 : 392,773,173.12 = 80,105,452.20 : x
  2. Step 2: Convert to fraction form
    261,858,274.20/392,773,173.12 = 80,105,452.20/x
  3. Step 3: Cross multiply
    261,858,274.20x = 392,773,173.12 × 80,105,452.20
  4. Step 4: Simplify right side
    261,858,274.20x = 31,463,272,644,806,488
  5. Step 5: Solve for x
    x = 31,463,272,644,806,488/261,858,274.20
  6. Step 6: Final answer
    x = 120,153,822.68

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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.