Home / 268,723,310.40-403,148,934.72-86,970,490.56

Finding the Fourth Proportional to 268,723,310.40, 403,148,934.72 and 86,970,490.56

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Solution

The fourth proportional to 268,723,310.40, 403,148,934.72 and 86,970,490.56 is: 130,476,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,723,310.40 : 403,148,934.72 = 86,970,490.56 : x
  2. Step 2: Convert to fraction form
    268,723,310.40/403,148,934.72 = 86,970,490.56/x
  3. Step 3: Cross multiply
    268,723,310.40x = 403,148,934.72 × 86,970,490.56
  4. Step 4: Simplify right side
    268,723,310.40x = 35,062,060,621,339,820
  5. Step 5: Solve for x
    x = 35,062,060,621,339,820/268,723,310.40
  6. Step 6: Final answer
    x = 130,476,439.02

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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.