Home / 82,090,812.80-123,055,003.20-38,884,073.60

Finding the Fourth Proportional to 82,090,812.80, 123,055,003.20 and 38,884,073.60

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Solution

The fourth proportional to 82,090,812.80, 123,055,003.20 and 38,884,073.60 is: 58,287,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,090,812.80 : 123,055,003.20 = 38,884,073.60 : x
  2. Step 2: Convert to fraction form
    82,090,812.80/123,055,003.20 = 38,884,073.60/x
  3. Step 3: Cross multiply
    82,090,812.80x = 123,055,003.20 × 38,884,073.60
  4. Step 4: Simplify right side
    82,090,812.80x = 4,784,879,801,277,036
  5. Step 5: Solve for x
    x = 4,784,879,801,277,036/82,090,812.80
  6. Step 6: Final answer
    x = 58,287,640.70

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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.