Home / 18,601,068.80-27,906,939.48-7,812,821.36

Finding the Fourth Proportional to 18,601,068.80, 27,906,939.48 and 7,812,821.36

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Solution

The fourth proportional to 18,601,068.80, 27,906,939.48 and 7,812,821.36 is: 11,721,473.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601,068.80 : 27,906,939.48 = 7,812,821.36 : x
  2. Step 2: Convert to fraction form
    18,601,068.80/27,906,939.48 = 7,812,821.36/x
  3. Step 3: Cross multiply
    18,601,068.80x = 27,906,939.48 × 7,812,821.36
  4. Step 4: Simplify right side
    18,601,068.80x = 218,031,932,861,571.31
  5. Step 5: Solve for x
    x = 218,031,932,861,571.31/18,601,068.80
  6. Step 6: Final answer
    x = 11,721,473.38

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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.