Home / 513,743,695.38-708,966,757.89-278,794,358.10

Finding the Fourth Proportional to 513,743,695.38, 708,966,757.89 and 278,794,358.10

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Solution

The fourth proportional to 513,743,695.38, 708,966,757.89 and 278,794,358.10 is: 384,736,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,743,695.38 : 708,966,757.89 = 278,794,358.10 : x
  2. Step 2: Convert to fraction form
    513,743,695.38/708,966,757.89 = 278,794,358.10/x
  3. Step 3: Cross multiply
    513,743,695.38x = 708,966,757.89 × 278,794,358.10
  4. Step 4: Simplify right side
    513,743,695.38x = 197,655,932,180,180,672
  5. Step 5: Solve for x
    x = 197,655,932,180,180,672/513,743,695.38
  6. Step 6: Final answer
    x = 384,736,462.87

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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.