Home / 20,601,857.40-30,902,786.10-15,833,614.20

Finding the Fourth Proportional to 20,601,857.40, 30,902,786.10 and 15,833,614.20

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Solution

The fourth proportional to 20,601,857.40, 30,902,786.10 and 15,833,614.20 is: 23,750,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601,857.40 : 30,902,786.10 = 15,833,614.20 : x
  2. Step 2: Convert to fraction form
    20,601,857.40/30,902,786.10 = 15,833,614.20/x
  3. Step 3: Cross multiply
    20,601,857.40x = 30,902,786.10 × 15,833,614.20
  4. Step 4: Simplify right side
    20,601,857.40x = 489,302,792,812,522.62
  5. Step 5: Solve for x
    x = 489,302,792,812,522.62/20,601,857.40
  6. Step 6: Final answer
    x = 23,750,421.30

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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.