Home / 39,960,940.81-55,146,097.64-21,626,226.31

Finding the Fourth Proportional to 39,960,940.81, 55,146,097.64 and 21,626,226.31

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Solution

The fourth proportional to 39,960,940.81, 55,146,097.64 and 21,626,226.31 is: 29,844,191.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,940.81 : 55,146,097.64 = 21,626,226.31 : x
  2. Step 2: Convert to fraction form
    39,960,940.81/55,146,097.64 = 21,626,226.31/x
  3. Step 3: Cross multiply
    39,960,940.81x = 55,146,097.64 × 21,626,226.31
  4. Step 4: Simplify right side
    39,960,940.81x = 1,192,601,987,675,996.75
  5. Step 5: Solve for x
    x = 1,192,601,987,675,996.75/39,960,940.81
  6. Step 6: Final answer
    x = 29,844,191.94

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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.