Home / 82,135,891.30-123,195,830.10-21,551,617.30

Finding the Fourth Proportional to 82,135,891.30, 123,195,830.10 and 21,551,617.30

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Solution

The fourth proportional to 82,135,891.30, 123,195,830.10 and 21,551,617.30 is: 32,325,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,135,891.30 : 123,195,830.10 = 21,551,617.30 : x
  2. Step 2: Convert to fraction form
    82,135,891.30/123,195,830.10 = 21,551,617.30/x
  3. Step 3: Cross multiply
    82,135,891.30x = 123,195,830.10 × 21,551,617.30
  4. Step 4: Simplify right side
    82,135,891.30x = 2,655,069,383,271,020.50
  5. Step 5: Solve for x
    x = 2,655,069,383,271,020.50/82,135,891.30
  6. Step 6: Final answer
    x = 32,325,325.03

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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.