Home / 39,957,774.75-55,141,729.20-21,623,060.25

Finding the Fourth Proportional to 39,957,774.75, 55,141,729.20 and 21,623,060.25

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Solution

The fourth proportional to 39,957,774.75, 55,141,729.20 and 21,623,060.25 is: 29,839,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,774.75 : 55,141,729.20 = 21,623,060.25 : x
  2. Step 2: Convert to fraction form
    39,957,774.75/55,141,729.20 = 21,623,060.25/x
  3. Step 3: Cross multiply
    39,957,774.75x = 55,141,729.20 × 21,623,060.25
  4. Step 4: Simplify right side
    39,957,774.75x = 1,192,332,932,780,784.25
  5. Step 5: Solve for x
    x = 1,192,332,932,780,784.25/39,957,774.75
  6. Step 6: Final answer
    x = 29,839,823.17

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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.