Home / 20,512,990.80-30,732,161.40-16,705,861.20

Finding the Fourth Proportional to 20,512,990.80, 30,732,161.40 and 16,705,861.20

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Solution

The fourth proportional to 20,512,990.80, 30,732,161.40 and 16,705,861.20 is: 25,028,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,990.80 : 30,732,161.40 = 16,705,861.20 : x
  2. Step 2: Convert to fraction form
    20,512,990.80/30,732,161.40 = 16,705,861.20/x
  3. Step 3: Cross multiply
    20,512,990.80x = 30,732,161.40 × 16,705,861.20
  4. Step 4: Simplify right side
    20,512,990.80x = 513,407,222,724,397.62
  5. Step 5: Solve for x
    x = 513,407,222,724,397.62/20,512,990.80
  6. Step 6: Final answer
    x = 25,028,394.33

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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.