Home / 513,039,599.30-707,975,679.51-278,085,215.24

Finding the Fourth Proportional to 513,039,599.30, 707,975,679.51 and 278,085,215.24

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Solution

The fourth proportional to 513,039,599.30, 707,975,679.51 and 278,085,215.24 is: 383,747,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,599.30 : 707,975,679.51 = 278,085,215.24 : x
  2. Step 2: Convert to fraction form
    513,039,599.30/707,975,679.51 = 278,085,215.24/x
  3. Step 3: Cross multiply
    513,039,599.30x = 707,975,679.51 × 278,085,215.24
  4. Step 4: Simplify right side
    513,039,599.30x = 196,877,569,217,683,744
  5. Step 5: Solve for x
    x = 196,877,569,217,683,744/513,039,599.30
  6. Step 6: Final answer
    x = 383,747,315.97

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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.