Home / 18,145,108.80-27,217,663.20-18,019,137.60

Finding the Fourth Proportional to 18,145,108.80, 27,217,663.20 and 18,019,137.60

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Solution

The fourth proportional to 18,145,108.80, 27,217,663.20 and 18,019,137.60 is: 27,028,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,108.80 : 27,217,663.20 = 18,019,137.60 : x
  2. Step 2: Convert to fraction form
    18,145,108.80/27,217,663.20 = 18,019,137.60/x
  3. Step 3: Cross multiply
    18,145,108.80x = 27,217,663.20 × 18,019,137.60
  4. Step 4: Simplify right side
    18,145,108.80x = 490,438,818,351,256.38
  5. Step 5: Solve for x
    x = 490,438,818,351,256.38/18,145,108.80
  6. Step 6: Final answer
    x = 27,028,706.40

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Similar ratio
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1.5x scale

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.