Home / 311,011,243.35-429,192,614.38-169,882,409.75

Finding the Fourth Proportional to 311,011,243.35, 429,192,614.38 and 169,882,409.75

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Solution

The fourth proportional to 311,011,243.35, 429,192,614.38 and 169,882,409.75 is: 234,436,140.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,011,243.35 : 429,192,614.38 = 169,882,409.75 : x
  2. Step 2: Convert to fraction form
    311,011,243.35/429,192,614.38 = 169,882,409.75/x
  3. Step 3: Cross multiply
    311,011,243.35x = 429,192,614.38 × 169,882,409.75
  4. Step 4: Simplify right side
    311,011,243.35x = 72,912,275,577,460,304
  5. Step 5: Solve for x
    x = 72,912,275,577,460,304/311,011,243.35
  6. Step 6: Final answer
    x = 234,436,140.61

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1.5x scale

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.