Home / 155,358,728.20-232,843,229.10-82,395,421.96

Finding the Fourth Proportional to 155,358,728.20, 232,843,229.10 and 82,395,421.96

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Solution

The fourth proportional to 155,358,728.20, 232,843,229.10 and 82,395,421.96 is: 123,489,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,358,728.20 : 232,843,229.10 = 82,395,421.96 : x
  2. Step 2: Convert to fraction form
    155,358,728.20/232,843,229.10 = 82,395,421.96/x
  3. Step 3: Cross multiply
    155,358,728.20x = 232,843,229.10 × 82,395,421.96
  4. Step 4: Simplify right side
    155,358,728.20x = 19,185,216,112,223,448
  5. Step 5: Solve for x
    x = 19,185,216,112,223,448/155,358,728.20
  6. Step 6: Final answer
    x = 123,489,786.09

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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.