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Finding the Fourth Proportional to 18,168,072.80, 27,266,980.80 and 18,026,355.20

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Solution

The fourth proportional to 18,168,072.80, 27,266,980.80 and 18,026,355.20 is: 27,054,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168,072.80 : 27,266,980.80 = 18,026,355.20 : x
  2. Step 2: Convert to fraction form
    18,168,072.80/27,266,980.80 = 18,026,355.20/x
  3. Step 3: Cross multiply
    18,168,072.80x = 27,266,980.80 × 18,026,355.20
  4. Step 4: Simplify right side
    18,168,072.80x = 491,524,281,132,380.12
  5. Step 5: Solve for x
    x = 491,524,281,132,380.12/18,168,072.80
  6. Step 6: Final answer
    x = 27,054,288.40

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1.5x scale

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.