Home / 18,378,931.20-27,568,396.80-7,592,647.20

Finding the Fourth Proportional to 18,378,931.20, 27,568,396.80 and 7,592,647.20

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Solution

The fourth proportional to 18,378,931.20, 27,568,396.80 and 7,592,647.20 is: 11,388,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,931.20 : 27,568,396.80 = 7,592,647.20 : x
  2. Step 2: Convert to fraction form
    18,378,931.20/27,568,396.80 = 7,592,647.20/x
  3. Step 3: Cross multiply
    18,378,931.20x = 27,568,396.80 × 7,592,647.20
  4. Step 4: Simplify right side
    18,378,931.20x = 209,317,110,772,008.97
  5. Step 5: Solve for x
    x = 209,317,110,772,008.97/18,378,931.20
  6. Step 6: Final answer
    x = 11,388,970.80

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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.