Home / 39,957,805.70-55,141,771.95-21,623,091.20

Finding the Fourth Proportional to 39,957,805.70, 55,141,771.95 and 21,623,091.20

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Solution

The fourth proportional to 39,957,805.70, 55,141,771.95 and 21,623,091.20 is: 29,839,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,805.70 : 55,141,771.95 = 21,623,091.20 : x
  2. Step 2: Convert to fraction form
    39,957,805.70/55,141,771.95 = 21,623,091.20/x
  3. Step 3: Cross multiply
    39,957,805.70x = 55,141,771.95 × 21,623,091.20
  4. Step 4: Simplify right side
    39,957,805.70x = 1,192,335,563,804,451.75
  5. Step 5: Solve for x
    x = 1,192,335,563,804,451.75/39,957,805.70
  6. Step 6: Final answer
    x = 29,839,865.90

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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.