Home / 39,960,928.81-55,146,081.08-21,626,214.31

Finding the Fourth Proportional to 39,960,928.81, 55,146,081.08 and 21,626,214.31

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Solution

The fourth proportional to 39,960,928.81, 55,146,081.08 and 21,626,214.31 is: 29,844,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,928.81 : 55,146,081.08 = 21,626,214.31 : x
  2. Step 2: Convert to fraction form
    39,960,928.81/55,146,081.08 = 21,626,214.31/x
  3. Step 3: Cross multiply
    39,960,928.81x = 55,146,081.08 × 21,626,214.31
  4. Step 4: Simplify right side
    39,960,928.81x = 1,192,600,967,792,716.25
  5. Step 5: Solve for x
    x = 1,192,600,967,792,716.25/39,960,928.81
  6. Step 6: Final answer
    x = 29,844,175.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.