Home / 513,039,591.57-707,975,668.88-278,085,207.51

Finding the Fourth Proportional to 513,039,591.57, 707,975,668.88 and 278,085,207.51

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Solution

The fourth proportional to 513,039,591.57, 707,975,668.88 and 278,085,207.51 is: 383,747,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,591.57 : 707,975,668.88 = 278,085,207.51 : x
  2. Step 2: Convert to fraction form
    513,039,591.57/707,975,668.88 = 278,085,207.51/x
  3. Step 3: Cross multiply
    513,039,591.57x = 707,975,668.88 × 278,085,207.51
  4. Step 4: Simplify right side
    513,039,591.57x = 196,877,560,792,525,856
  5. Step 5: Solve for x
    x = 196,877,560,792,525,856/513,039,591.57
  6. Step 6: Final answer
    x = 383,747,305.33

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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.