Home / 279,269,478.34-385,391,861.82-161,862,909.80

Finding the Fourth Proportional to 279,269,478.34, 385,391,861.82 and 161,862,909.80

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Solution

The fourth proportional to 279,269,478.34, 385,391,861.82 and 161,862,909.80 is: 223,370,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,269,478.34 : 385,391,861.82 = 161,862,909.80 : x
  2. Step 2: Convert to fraction form
    279,269,478.34/385,391,861.82 = 161,862,909.80/x
  3. Step 3: Cross multiply
    279,269,478.34x = 385,391,861.82 × 161,862,909.80
  4. Step 4: Simplify right side
    279,269,478.34x = 62,380,648,165,497,760
  5. Step 5: Solve for x
    x = 62,380,648,165,497,760/279,269,478.34
  6. Step 6: Final answer
    x = 223,370,804.92

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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.