Home / 13,608,005.85-20,412,008.78-12,013,682.85

Finding the Fourth Proportional to 13,608,005.85, 20,412,008.78 and 12,013,682.85

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Solution

The fourth proportional to 13,608,005.85, 20,412,008.78 and 12,013,682.85 is: 18,020,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,005.85 : 20,412,008.78 = 12,013,682.85 : x
  2. Step 2: Convert to fraction form
    13,608,005.85/20,412,008.78 = 12,013,682.85/x
  3. Step 3: Cross multiply
    13,608,005.85x = 20,412,008.78 × 12,013,682.85
  4. Step 4: Simplify right side
    13,608,005.85x = 245,223,399,754,266.97
  5. Step 5: Solve for x
    x = 245,223,399,754,266.97/13,608,005.85
  6. Step 6: Final answer
    x = 18,020,524.28

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1.5x scale

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.