Home / 18,802,626-28,206,448.65-7,440,417.42

Finding the Fourth Proportional to 18,802,626, 28,206,448.65 and 7,440,417.42

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Solution

The fourth proportional to 18,802,626, 28,206,448.65 and 7,440,417.42 is: 11,161,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,626 : 28,206,448.65 = 7,440,417.42 : x
  2. Step 2: Convert to fraction form
    18,802,626/28,206,448.65 = 7,440,417.42/x
  3. Step 3: Cross multiply
    18,802,626x = 28,206,448.65 × 7,440,417.42
  4. Step 4: Simplify right side
    18,802,626x = 209,867,751,891,795.47
  5. Step 5: Solve for x
    x = 209,867,751,891,795.47/18,802,626
  6. Step 6: Final answer
    x = 11,161,619.23

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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.