Home / 21,947,376.06-30,286,982.09-12,157,789.91

Finding the Fourth Proportional to 21,947,376.06, 30,286,982.09 and 12,157,789.91

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Solution

The fourth proportional to 21,947,376.06, 30,286,982.09 and 12,157,789.91 is: 16,777,530.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947,376.06 : 30,286,982.09 = 12,157,789.91 : x
  2. Step 2: Convert to fraction form
    21,947,376.06/30,286,982.09 = 12,157,789.91/x
  3. Step 3: Cross multiply
    21,947,376.06x = 30,286,982.09 × 12,157,789.91
  4. Step 4: Simplify right side
    21,947,376.06x = 368,222,765,137,112.25
  5. Step 5: Solve for x
    x = 368,222,765,137,112.25/21,947,376.06
  6. Step 6: Final answer
    x = 16,777,530.22

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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.