Home / 39,957,857.84-55,141,844.09-21,623,143.34

Finding the Fourth Proportional to 39,957,857.84, 55,141,844.09 and 21,623,143.34

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Solution

The fourth proportional to 39,957,857.84, 55,141,844.09 and 21,623,143.34 is: 29,839,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,857.84 : 55,141,844.09 = 21,623,143.34 : x
  2. Step 2: Convert to fraction form
    39,957,857.84/55,141,844.09 = 21,623,143.34/x
  3. Step 3: Cross multiply
    39,957,857.84x = 55,141,844.09 × 21,623,143.34
  4. Step 4: Simplify right side
    39,957,857.84x = 1,192,339,998,406,177
  5. Step 5: Solve for x
    x = 1,192,339,998,406,177/39,957,857.84
  6. Step 6: Final answer
    x = 29,839,937.95

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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.