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Finding the Fourth Proportional to 28,469,004.40, 42,703,506.60 and 27,146,306.80

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Solution

The fourth proportional to 28,469,004.40, 42,703,506.60 and 27,146,306.80 is: 40,719,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469,004.40 : 42,703,506.60 = 27,146,306.80 : x
  2. Step 2: Convert to fraction form
    28,469,004.40/42,703,506.60 = 27,146,306.80/x
  3. Step 3: Cross multiply
    28,469,004.40x = 42,703,506.60 × 27,146,306.80
  4. Step 4: Simplify right side
    28,469,004.40x = 1,159,242,491,599,425
  5. Step 5: Solve for x
    x = 1,159,242,491,599,425/28,469,004.40
  6. Step 6: Final answer
    x = 40,719,460.20

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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.