Home / 18,191,743.10-27,288,052.05-5,412,664.70

Finding the Fourth Proportional to 18,191,743.10, 27,288,052.05 and 5,412,664.70

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Solution

The fourth proportional to 18,191,743.10, 27,288,052.05 and 5,412,664.70 is: 8,119,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,743.10 : 27,288,052.05 = 5,412,664.70 : x
  2. Step 2: Convert to fraction form
    18,191,743.10/27,288,052.05 = 5,412,664.70/x
  3. Step 3: Cross multiply
    18,191,743.10x = 27,288,052.05 × 5,412,664.70
  4. Step 4: Simplify right side
    18,191,743.10x = 147,701,076,062,797.66
  5. Step 5: Solve for x
    x = 147,701,076,062,797.66/18,191,743.10
  6. Step 6: Final answer
    x = 8,119,127.19

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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.