Home / 29,456,138.72-40,628,532.08-19,661,644.64

Finding the Fourth Proportional to 29,456,138.72, 40,628,532.08 and 19,661,644.64

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Solution

The fourth proportional to 29,456,138.72, 40,628,532.08 and 19,661,644.64 is: 27,119,092.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,456,138.72 : 40,628,532.08 = 19,661,644.64 : x
  2. Step 2: Convert to fraction form
    29,456,138.72/40,628,532.08 = 19,661,644.64/x
  3. Step 3: Cross multiply
    29,456,138.72x = 40,628,532.08 × 19,661,644.64
  4. Step 4: Simplify right side
    29,456,138.72x = 798,823,760,001,800
  5. Step 5: Solve for x
    x = 798,823,760,001,800/29,456,138.72
  6. Step 6: Final answer
    x = 27,119,092.82

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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.