Home / 82,032,139.40-123,048,209.10-68,694,744.20

Finding the Fourth Proportional to 82,032,139.40, 123,048,209.10 and 68,694,744.20

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Solution

The fourth proportional to 82,032,139.40, 123,048,209.10 and 68,694,744.20 is: 103,042,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,032,139.40 : 123,048,209.10 = 68,694,744.20 : x
  2. Step 2: Convert to fraction form
    82,032,139.40/123,048,209.10 = 68,694,744.20/x
  3. Step 3: Cross multiply
    82,032,139.40x = 123,048,209.10 × 68,694,744.20
  4. Step 4: Simplify right side
    82,032,139.40x = 8,452,765,248,392,612
  5. Step 5: Solve for x
    x = 8,452,765,248,392,612/82,032,139.40
  6. Step 6: Final answer
    x = 103,042,116.30

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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.