Home / 82,032,114.40-123,048,171.60-68,694,719.20

Finding the Fourth Proportional to 82,032,114.40, 123,048,171.60 and 68,694,719.20

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Solution

The fourth proportional to 82,032,114.40, 123,048,171.60 and 68,694,719.20 is: 103,042,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,032,114.40 : 123,048,171.60 = 68,694,719.20 : x
  2. Step 2: Convert to fraction form
    82,032,114.40/123,048,171.60 = 68,694,719.20/x
  3. Step 3: Cross multiply
    82,032,114.40x = 123,048,171.60 × 68,694,719.20
  4. Step 4: Simplify right side
    82,032,114.40x = 8,452,759,596,135,415
  5. Step 5: Solve for x
    x = 8,452,759,596,135,415/82,032,114.40
  6. Step 6: Final answer
    x = 103,042,078.80

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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.