Home / 279,565,542.85-385,801,614.42-154,114,982.80

Finding the Fourth Proportional to 279,565,542.85, 385,801,614.42 and 154,114,982.80

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Solution

The fourth proportional to 279,565,542.85, 385,801,614.42 and 154,114,982.80 is: 212,679,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,565,542.85 : 385,801,614.42 = 154,114,982.80 : x
  2. Step 2: Convert to fraction form
    279,565,542.85/385,801,614.42 = 154,114,982.80/x
  3. Step 3: Cross multiply
    279,565,542.85x = 385,801,614.42 × 154,114,982.80
  4. Step 4: Simplify right side
    279,565,542.85x = 59,457,809,170,550,536
  5. Step 5: Solve for x
    x = 59,457,809,170,550,536/279,565,542.85
  6. Step 6: Final answer
    x = 212,679,318.65

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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.