Home / 18,154,828.20-27,204,248.70-15,747,378.60

Finding the Fourth Proportional to 18,154,828.20, 27,204,248.70 and 15,747,378.60

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Solution

The fourth proportional to 18,154,828.20, 27,204,248.70 and 15,747,378.60 is: 23,596,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154,828.20 : 27,204,248.70 = 15,747,378.60 : x
  2. Step 2: Convert to fraction form
    18,154,828.20/27,204,248.70 = 15,747,378.60/x
  3. Step 3: Cross multiply
    18,154,828.20x = 27,204,248.70 × 15,747,378.60
  4. Step 4: Simplify right side
    18,154,828.20x = 428,395,603,807,457.81
  5. Step 5: Solve for x
    x = 428,395,603,807,457.81/18,154,828.20
  6. Step 6: Final answer
    x = 23,596,786.44

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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.