Home / 82,032,170.90-123,048,256.35-68,694,775.70

Finding the Fourth Proportional to 82,032,170.90, 123,048,256.35 and 68,694,775.70

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Solution

The fourth proportional to 82,032,170.90, 123,048,256.35 and 68,694,775.70 is: 103,042,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,032,170.90 : 123,048,256.35 = 68,694,775.70 : x
  2. Step 2: Convert to fraction form
    82,032,170.90/123,048,256.35 = 68,694,775.70/x
  3. Step 3: Cross multiply
    82,032,170.90x = 123,048,256.35 × 68,694,775.70
  4. Step 4: Simplify right side
    82,032,170.90x = 8,452,772,370,239,351
  5. Step 5: Solve for x
    x = 8,452,772,370,239,351/82,032,170.90
  6. Step 6: Final answer
    x = 103,042,163.55

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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.