Home / 729,251,108.46-1,006,366,500.78-399,226,247.46

Finding the Fourth Proportional to 729,251,108.46, 1,006,366,500.78 and 399,226,247.46

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Solution

The fourth proportional to 729,251,108.46, 1,006,366,500.78 and 399,226,247.46 is: 550,932,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,251,108.46 : 1,006,366,500.78 = 399,226,247.46 : x
  2. Step 2: Convert to fraction form
    729,251,108.46/1,006,366,500.78 = 399,226,247.46/x
  3. Step 3: Cross multiply
    729,251,108.46x = 1,006,366,500.78 × 399,226,247.46
  4. Step 4: Simplify right side
    729,251,108.46x = 401,767,921,675,850,560
  5. Step 5: Solve for x
    x = 401,767,921,675,850,560/729,251,108.46
  6. Step 6: Final answer
    x = 550,932,205.68

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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.