Home / 39,957,780.16-55,141,736.80-21,623,065.84

Finding the Fourth Proportional to 39,957,780.16, 55,141,736.80 and 21,623,065.84

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Solution

The fourth proportional to 39,957,780.16, 55,141,736.80 and 21,623,065.84 is: 29,839,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,780.16 : 55,141,736.80 = 21,623,065.84 : x
  2. Step 2: Convert to fraction form
    39,957,780.16/55,141,736.80 = 21,623,065.84/x
  3. Step 3: Cross multiply
    39,957,780.16x = 55,141,736.80 × 21,623,065.84
  4. Step 4: Simplify right side
    39,957,780.16x = 1,192,333,405,358,350.75
  5. Step 5: Solve for x
    x = 1,192,333,405,358,350.75/39,957,780.16
  6. Step 6: Final answer
    x = 29,839,830.96

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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.