Home / 512,475,350.10-768,713,025.15-318,983,586.90

Finding the Fourth Proportional to 512,475,350.10, 768,713,025.15 and 318,983,586.90

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Solution

The fourth proportional to 512,475,350.10, 768,713,025.15 and 318,983,586.90 is: 478,475,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,475,350.10 : 768,713,025.15 = 318,983,586.90 : x
  2. Step 2: Convert to fraction form
    512,475,350.10/768,713,025.15 = 318,983,586.90/x
  3. Step 3: Cross multiply
    512,475,350.10x = 768,713,025.15 × 318,983,586.90
  4. Step 4: Simplify right side
    512,475,350.10x = 245,206,838,059,096,896
  5. Step 5: Solve for x
    x = 245,206,838,059,096,896/512,475,350.10
  6. Step 6: Final answer
    x = 478,475,380.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.