Home / 20,969,279.19-28,936,674.50-11,677,328.55

Finding the Fourth Proportional to 20,969,279.19, 28,936,674.50 and 11,677,328.55

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Solution

The fourth proportional to 20,969,279.19, 28,936,674.50 and 11,677,328.55 is: 16,114,195.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,279.19 : 28,936,674.50 = 11,677,328.55 : x
  2. Step 2: Convert to fraction form
    20,969,279.19/28,936,674.50 = 11,677,328.55/x
  3. Step 3: Cross multiply
    20,969,279.19x = 28,936,674.50 × 11,677,328.55
  4. Step 4: Simplify right side
    20,969,279.19x = 337,903,055,222,520.38
  5. Step 5: Solve for x
    x = 337,903,055,222,520.38/20,969,279.19
  6. Step 6: Final answer
    x = 16,114,195.06

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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.