Home / 513,039,593.91-707,975,672.11-278,085,209.85

Finding the Fourth Proportional to 513,039,593.91, 707,975,672.11 and 278,085,209.85

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Solution

The fourth proportional to 513,039,593.91, 707,975,672.11 and 278,085,209.85 is: 383,747,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,593.91 : 707,975,672.11 = 278,085,209.85 : x
  2. Step 2: Convert to fraction form
    513,039,593.91/707,975,672.11 = 278,085,209.85/x
  3. Step 3: Cross multiply
    513,039,593.91x = 707,975,672.11 × 278,085,209.85
  4. Step 4: Simplify right side
    513,039,593.91x = 196,877,563,347,404,160
  5. Step 5: Solve for x
    x = 196,877,563,347,404,160/513,039,593.91
  6. Step 6: Final answer
    x = 383,747,308.56

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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.