Home / 39,957,882.66-55,141,877.52-21,623,168.16

Finding the Fourth Proportional to 39,957,882.66, 55,141,877.52 and 21,623,168.16

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Solution

The fourth proportional to 39,957,882.66, 55,141,877.52 and 21,623,168.16 is: 29,839,971.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,882.66 : 55,141,877.52 = 21,623,168.16 : x
  2. Step 2: Convert to fraction form
    39,957,882.66/55,141,877.52 = 21,623,168.16/x
  3. Step 3: Cross multiply
    39,957,882.66x = 55,141,877.52 × 21,623,168.16
  4. Step 4: Simplify right side
    39,957,882.66x = 1,192,342,090,273,083.75
  5. Step 5: Solve for x
    x = 1,192,342,090,273,083.75/39,957,882.66
  6. Step 6: Final answer
    x = 29,839,971.76

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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.