Home / 425,693,656.13-638,866,399.87-192,687,999.14

Finding the Fourth Proportional to 425,693,656.13, 638,866,399.87 and 192,687,999.14

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Solution

The fourth proportional to 425,693,656.13, 638,866,399.87 and 192,687,999.14 is: 289,179,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,693,656.13 : 638,866,399.87 = 192,687,999.14 : x
  2. Step 2: Convert to fraction form
    425,693,656.13/638,866,399.87 = 192,687,999.14/x
  3. Step 3: Cross multiply
    425,693,656.13x = 638,866,399.87 × 192,687,999.14
  4. Step 4: Simplify right side
    425,693,656.13x = 123,101,888,305,049,392
  5. Step 5: Solve for x
    x = 123,101,888,305,049,392/425,693,656.13
  6. Step 6: Final answer
    x = 289,179,522.72

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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.