Home / 18,729,420.75-28,094,142.06-5,266,248.75

Finding the Fourth Proportional to 18,729,420.75, 28,094,142.06 and 5,266,248.75

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Solution

The fourth proportional to 18,729,420.75, 28,094,142.06 and 5,266,248.75 is: 7,899,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729,420.75 : 28,094,142.06 = 5,266,248.75 : x
  2. Step 2: Convert to fraction form
    18,729,420.75/28,094,142.06 = 5,266,248.75/x
  3. Step 3: Cross multiply
    18,729,420.75x = 28,094,142.06 × 5,266,248.75
  4. Step 4: Simplify right side
    18,729,420.75x = 147,950,740,505,797.41
  5. Step 5: Solve for x
    x = 147,950,740,505,797.41/18,729,420.75
  6. Step 6: Final answer
    x = 7,899,376.20

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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.