Home / 513,304,380.62-708,360,234.06-278,354,978.82

Finding the Fourth Proportional to 513,304,380.62, 708,360,234.06 and 278,354,978.82

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Solution

The fourth proportional to 513,304,380.62, 708,360,234.06 and 278,354,978.82 is: 384,129,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,304,380.62 : 708,360,234.06 = 278,354,978.82 : x
  2. Step 2: Convert to fraction form
    513,304,380.62/708,360,234.06 = 278,354,978.82/x
  3. Step 3: Cross multiply
    513,304,380.62x = 708,360,234.06 × 278,354,978.82
  4. Step 4: Simplify right side
    513,304,380.62x = 197,175,597,948,701,536
  5. Step 5: Solve for x
    x = 197,175,597,948,701,536/513,304,380.62
  6. Step 6: Final answer
    x = 384,129,973.16

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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.