Home / 18,128,438.20-27,192,657.30-7,346,090.80

Finding the Fourth Proportional to 18,128,438.20, 27,192,657.30 and 7,346,090.80

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Solution

The fourth proportional to 18,128,438.20, 27,192,657.30 and 7,346,090.80 is: 11,019,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128,438.20 : 27,192,657.30 = 7,346,090.80 : x
  2. Step 2: Convert to fraction form
    18,128,438.20/27,192,657.30 = 7,346,090.80/x
  3. Step 3: Cross multiply
    18,128,438.20x = 27,192,657.30 × 7,346,090.80
  4. Step 4: Simplify right side
    18,128,438.20x = 199,759,729,619,082.84
  5. Step 5: Solve for x
    x = 199,759,729,619,082.84/18,128,438.20
  6. Step 6: Final answer
    x = 11,019,136.20

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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.