Home / 18,145,208.40-27,217,812.60-18,019,237.20

Finding the Fourth Proportional to 18,145,208.40, 27,217,812.60 and 18,019,237.20

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Solution

The fourth proportional to 18,145,208.40, 27,217,812.60 and 18,019,237.20 is: 27,028,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,208.40 : 27,217,812.60 = 18,019,237.20 : x
  2. Step 2: Convert to fraction form
    18,145,208.40/27,217,812.60 = 18,019,237.20/x
  3. Step 3: Cross multiply
    18,145,208.40x = 27,217,812.60 × 18,019,237.20
  4. Step 4: Simplify right side
    18,145,208.40x = 490,444,221,304,548.75
  5. Step 5: Solve for x
    x = 490,444,221,304,548.75/18,145,208.40
  6. Step 6: Final answer
    x = 27,028,855.80

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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.