Home / 20,105,348.84-27,755,018.10-12,377,015.72

Finding the Fourth Proportional to 20,105,348.84, 27,755,018.10 and 12,377,015.72

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Solution

The fourth proportional to 20,105,348.84, 27,755,018.10 and 12,377,015.72 is: 17,086,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,348.84 : 27,755,018.10 = 12,377,015.72 : x
  2. Step 2: Convert to fraction form
    20,105,348.84/27,755,018.10 = 12,377,015.72/x
  3. Step 3: Cross multiply
    20,105,348.84x = 27,755,018.10 × 12,377,015.72
  4. Step 4: Simplify right side
    20,105,348.84x = 343,524,295,332,584.56
  5. Step 5: Solve for x
    x = 343,524,295,332,584.56/20,105,348.84
  6. Step 6: Final answer
    x = 17,086,214.12

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1.5x scale

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.