Home / 513,039,599.17-707,975,679.34-278,085,215.11

Finding the Fourth Proportional to 513,039,599.17, 707,975,679.34 and 278,085,215.11

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Solution

The fourth proportional to 513,039,599.17, 707,975,679.34 and 278,085,215.11 is: 383,747,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,599.17 : 707,975,679.34 = 278,085,215.11 : x
  2. Step 2: Convert to fraction form
    513,039,599.17/707,975,679.34 = 278,085,215.11/x
  3. Step 3: Cross multiply
    513,039,599.17x = 707,975,679.34 × 278,085,215.11
  4. Step 4: Simplify right side
    513,039,599.17x = 196,877,569,081,912,288
  5. Step 5: Solve for x
    x = 196,877,569,081,912,288/513,039,599.17
  6. Step 6: Final answer
    x = 383,747,315.80

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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.