Home / 18,785,192.72-25,912,107.96-12,420,026

Finding the Fourth Proportional to 18,785,192.72, 25,912,107.96 and 12,420,026

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Solution

The fourth proportional to 18,785,192.72, 25,912,107.96 and 12,420,026 is: 17,132,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785,192.72 : 25,912,107.96 = 12,420,026 : x
  2. Step 2: Convert to fraction form
    18,785,192.72/25,912,107.96 = 12,420,026/x
  3. Step 3: Cross multiply
    18,785,192.72x = 25,912,107.96 × 12,420,026
  4. Step 4: Simplify right side
    18,785,192.72x = 321,829,054,578,007
  5. Step 5: Solve for x
    x = 321,829,054,578,007/18,785,192.72
  6. Step 6: Final answer
    x = 17,132,060.31

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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.