Home / 11,191,320.80-16,786,981.20-8,503,935.20

Finding the Fourth Proportional to 11,191,320.80, 16,786,981.20 and 8,503,935.20

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Solution

The fourth proportional to 11,191,320.80, 16,786,981.20 and 8,503,935.20 is: 12,755,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191,320.80 : 16,786,981.20 = 8,503,935.20 : x
  2. Step 2: Convert to fraction form
    11,191,320.80/16,786,981.20 = 8,503,935.20/x
  3. Step 3: Cross multiply
    11,191,320.80x = 16,786,981.20 × 8,503,935.20
  4. Step 4: Simplify right side
    11,191,320.80x = 142,755,400,328,418.22
  5. Step 5: Solve for x
    x = 142,755,400,328,418.22/11,191,320.80
  6. Step 6: Final answer
    x = 12,755,902.80

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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.