Home / 279,318,111.70-418,259,722.20-221,444,186.80

Finding the Fourth Proportional to 279,318,111.70, 418,259,722.20 and 221,444,186.80

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Solution

The fourth proportional to 279,318,111.70, 418,259,722.20 and 221,444,186.80 is: 331,597,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,318,111.70 : 418,259,722.20 = 221,444,186.80 : x
  2. Step 2: Convert to fraction form
    279,318,111.70/418,259,722.20 = 221,444,186.80/x
  3. Step 3: Cross multiply
    279,318,111.70x = 418,259,722.20 × 221,444,186.80
  4. Step 4: Simplify right side
    279,318,111.70x = 92,621,184,053,772,912
  5. Step 5: Solve for x
    x = 92,621,184,053,772,912/279,318,111.70
  6. Step 6: Final answer
    x = 331,597,487.50

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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.