Home / 18,664,621.90-27,996,932.85-5,201,449.90

Finding the Fourth Proportional to 18,664,621.90, 27,996,932.85 and 5,201,449.90

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Solution

The fourth proportional to 18,664,621.90, 27,996,932.85 and 5,201,449.90 is: 7,802,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664,621.90 : 27,996,932.85 = 5,201,449.90 : x
  2. Step 2: Convert to fraction form
    18,664,621.90/27,996,932.85 = 5,201,449.90/x
  3. Step 3: Cross multiply
    18,664,621.90x = 27,996,932.85 × 5,201,449.90
  4. Step 4: Simplify right side
    18,664,621.90x = 145,624,643,572,939.22
  5. Step 5: Solve for x
    x = 145,624,643,572,939.22/18,664,621.90
  6. Step 6: Final answer
    x = 7,802,174.85

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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.