Home / 18,914,060.80-28,371,091.20-12,942,092.80

Finding the Fourth Proportional to 18,914,060.80, 28,371,091.20 and 12,942,092.80

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Solution

The fourth proportional to 18,914,060.80, 28,371,091.20 and 12,942,092.80 is: 19,413,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914,060.80 : 28,371,091.20 = 12,942,092.80 : x
  2. Step 2: Convert to fraction form
    18,914,060.80/28,371,091.20 = 12,942,092.80/x
  3. Step 3: Cross multiply
    18,914,060.80x = 28,371,091.20 × 12,942,092.80
  4. Step 4: Simplify right side
    18,914,060.80x = 367,181,295,147,663.38
  5. Step 5: Solve for x
    x = 367,181,295,147,663.38/18,914,060.80
  6. Step 6: Final answer
    x = 19,413,139.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.