Home / 18,802,658.78-28,206,497.75-7,440,450.20

Finding the Fourth Proportional to 18,802,658.78, 28,206,497.75 and 7,440,450.20

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Solution

The fourth proportional to 18,802,658.78, 28,206,497.75 and 7,440,450.20 is: 11,161,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,658.78 : 28,206,497.75 = 7,440,450.20 : x
  2. Step 2: Convert to fraction form
    18,802,658.78/28,206,497.75 = 7,440,450.20/x
  3. Step 3: Cross multiply
    18,802,658.78x = 28,206,497.75 × 7,440,450.20
  4. Step 4: Simplify right side
    18,802,658.78x = 209,869,041,825,287.06
  5. Step 5: Solve for x
    x = 209,869,041,825,287.06/18,802,658.78
  6. Step 6: Final answer
    x = 11,161,668.37

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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.