Home / 513,039,604.92-707,975,687.26-278,085,220.88

Finding the Fourth Proportional to 513,039,604.92, 707,975,687.26 and 278,085,220.88

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Solution

The fourth proportional to 513,039,604.92, 707,975,687.26 and 278,085,220.88 is: 383,747,323.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,604.92 : 707,975,687.26 = 278,085,220.88 : x
  2. Step 2: Convert to fraction form
    513,039,604.92/707,975,687.26 = 278,085,220.88/x
  3. Step 3: Cross multiply
    513,039,604.92x = 707,975,687.26 × 278,085,220.88
  4. Step 4: Simplify right side
    513,039,604.92x = 196,877,575,369,366,880
  5. Step 5: Solve for x
    x = 196,877,575,369,366,880/513,039,604.92
  6. Step 6: Final answer
    x = 383,747,323.76

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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.