Home / 13,608,045.45-20,412,068.18-11,057,128.65

Finding the Fourth Proportional to 13,608,045.45, 20,412,068.18 and 11,057,128.65

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Solution

The fourth proportional to 13,608,045.45, 20,412,068.18 and 11,057,128.65 is: 16,585,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,045.45 : 20,412,068.18 = 11,057,128.65 : x
  2. Step 2: Convert to fraction form
    13,608,045.45/20,412,068.18 = 11,057,128.65/x
  3. Step 3: Cross multiply
    13,608,045.45x = 20,412,068.18 × 11,057,128.65
  4. Step 4: Simplify right side
    13,608,045.45x = 225,698,863,823,545.72
  5. Step 5: Solve for x
    x = 225,698,863,823,545.72/13,608,045.45
  6. Step 6: Final answer
    x = 16,585,692.98

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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.