Home / 82,032,172.90-123,048,259.35-68,694,777.70

Finding the Fourth Proportional to 82,032,172.90, 123,048,259.35 and 68,694,777.70

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Solution

The fourth proportional to 82,032,172.90, 123,048,259.35 and 68,694,777.70 is: 103,042,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,032,172.90 : 123,048,259.35 = 68,694,777.70 : x
  2. Step 2: Convert to fraction form
    82,032,172.90/123,048,259.35 = 68,694,777.70/x
  3. Step 3: Cross multiply
    82,032,172.90x = 123,048,259.35 × 68,694,777.70
  4. Step 4: Simplify right side
    82,032,172.90x = 8,452,772,822,420,196
  5. Step 5: Solve for x
    x = 8,452,772,822,420,196/82,032,172.90
  6. Step 6: Final answer
    x = 103,042,166.55

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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.