Home / 663,552,108.80-995,328,163.20-419,895,814.40

Finding the Fourth Proportional to 663,552,108.80, 995,328,163.20 and 419,895,814.40

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Solution

The fourth proportional to 663,552,108.80, 995,328,163.20 and 419,895,814.40 is: 629,843,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,108.80 : 995,328,163.20 = 419,895,814.40 : x
  2. Step 2: Convert to fraction form
    663,552,108.80/995,328,163.20 = 419,895,814.40/x
  3. Step 3: Cross multiply
    663,552,108.80x = 995,328,163.20 × 419,895,814.40
  4. Step 4: Simplify right side
    663,552,108.80x = 417,934,129,682,120,128
  5. Step 5: Solve for x
    x = 417,934,129,682,120,128/663,552,108.80
  6. Step 6: Final answer
    x = 629,843,721.60

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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.