Home / 18,127,937.20-27,191,905.80-7,345,589.80

Finding the Fourth Proportional to 18,127,937.20, 27,191,905.80 and 7,345,589.80

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Solution

The fourth proportional to 18,127,937.20, 27,191,905.80 and 7,345,589.80 is: 11,018,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127,937.20 : 27,191,905.80 = 7,345,589.80 : x
  2. Step 2: Convert to fraction form
    18,127,937.20/27,191,905.80 = 7,345,589.80/x
  3. Step 3: Cross multiply
    18,127,937.20x = 27,191,905.80 × 7,345,589.80
  4. Step 4: Simplify right side
    18,127,937.20x = 199,740,585,887,040.84
  5. Step 5: Solve for x
    x = 199,740,585,887,040.84/18,127,937.20
  6. Step 6: Final answer
    x = 11,018,384.70

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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.