Home / 20,738,052.90-31,107,079.35-18,974,456.10

Finding the Fourth Proportional to 20,738,052.90, 31,107,079.35 and 18,974,456.10

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Solution

The fourth proportional to 20,738,052.90, 31,107,079.35 and 18,974,456.10 is: 28,461,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,052.90 : 31,107,079.35 = 18,974,456.10 : x
  2. Step 2: Convert to fraction form
    20,738,052.90/31,107,079.35 = 18,974,456.10/x
  3. Step 3: Cross multiply
    20,738,052.90x = 31,107,079.35 × 18,974,456.10
  4. Step 4: Simplify right side
    20,738,052.90x = 590,239,911,525,791.62
  5. Step 5: Solve for x
    x = 590,239,911,525,791.62/20,738,052.90
  6. Step 6: Final answer
    x = 28,461,684.15

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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.