Home / 13,188,083.40-19,786,790.70-12,721,523.40

Finding the Fourth Proportional to 13,188,083.40, 19,786,790.70 and 12,721,523.40

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Solution

The fourth proportional to 13,188,083.40, 19,786,790.70 and 12,721,523.40 is: 19,086,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188,083.40 : 19,786,790.70 = 12,721,523.40 : x
  2. Step 2: Convert to fraction form
    13,188,083.40/19,786,790.70 = 12,721,523.40/x
  3. Step 3: Cross multiply
    13,188,083.40x = 19,786,790.70 × 12,721,523.40
  4. Step 4: Simplify right side
    13,188,083.40x = 251,718,120,900,952.38
  5. Step 5: Solve for x
    x = 251,718,120,900,952.38/13,188,083.40
  6. Step 6: Final answer
    x = 19,086,785.64

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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.