Home / 20,738,061.40-31,107,092.10-18,647,872.60

Finding the Fourth Proportional to 20,738,061.40, 31,107,092.10 and 18,647,872.60

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Solution

The fourth proportional to 20,738,061.40, 31,107,092.10 and 18,647,872.60 is: 27,971,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,061.40 : 31,107,092.10 = 18,647,872.60 : x
  2. Step 2: Convert to fraction form
    20,738,061.40/31,107,092.10 = 18,647,872.60/x
  3. Step 3: Cross multiply
    20,738,061.40x = 31,107,092.10 × 18,647,872.60
  4. Step 4: Simplify right side
    20,738,061.40x = 580,081,090,437,266.50
  5. Step 5: Solve for x
    x = 580,081,090,437,266.50/20,738,061.40
  6. Step 6: Final answer
    x = 27,971,808.90

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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.