Home / 39,957,804.70-55,141,770.57-21,623,090.20

Finding the Fourth Proportional to 39,957,804.70, 55,141,770.57 and 21,623,090.20

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Solution

The fourth proportional to 39,957,804.70, 55,141,770.57 and 21,623,090.20 is: 29,839,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,804.70 : 55,141,770.57 = 21,623,090.20 : x
  2. Step 2: Convert to fraction form
    39,957,804.70/55,141,770.57 = 21,623,090.20/x
  3. Step 3: Cross multiply
    39,957,804.70x = 55,141,770.57 × 21,623,090.20
  4. Step 4: Simplify right side
    39,957,804.70x = 1,192,335,478,822,815.50
  5. Step 5: Solve for x
    x = 1,192,335,478,822,815.50/39,957,804.70
  6. Step 6: Final answer
    x = 29,839,864.52

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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.