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Finding the Fourth Proportional to 27,679,417.80, 41,519,126.70 and 20,504,964.30

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Solution

The fourth proportional to 27,679,417.80, 41,519,126.70 and 20,504,964.30 is: 30,757,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679,417.80 : 41,519,126.70 = 20,504,964.30 : x
  2. Step 2: Convert to fraction form
    27,679,417.80/41,519,126.70 = 20,504,964.30/x
  3. Step 3: Cross multiply
    27,679,417.80x = 41,519,126.70 × 20,504,964.30
  4. Step 4: Simplify right side
    27,679,417.80x = 851,348,210,750,676.88
  5. Step 5: Solve for x
    x = 851,348,210,750,676.88/27,679,417.80
  6. Step 6: Final answer
    x = 30,757,446.45

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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.