Home / 279,478,380.49-385,681,744.98-162,073,418.92

Finding the Fourth Proportional to 279,478,380.49, 385,681,744.98 and 162,073,418.92

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Solution

The fourth proportional to 279,478,380.49, 385,681,744.98 and 162,073,418.92 is: 223,662,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,478,380.49 : 385,681,744.98 = 162,073,418.92 : x
  2. Step 2: Convert to fraction form
    279,478,380.49/385,681,744.98 = 162,073,418.92/x
  3. Step 3: Cross multiply
    279,478,380.49x = 385,681,744.98 × 162,073,418.92
  4. Step 4: Simplify right side
    279,478,380.49x = 62,508,759,023,940,144
  5. Step 5: Solve for x
    x = 62,508,759,023,940,144/279,478,380.49
  6. Step 6: Final answer
    x = 223,662,234.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.