Home / 28,660,360.82-39,552,960.28-21,583,283.90

Finding the Fourth Proportional to 28,660,360.82, 39,552,960.28 and 21,583,283.90

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Solution

The fourth proportional to 28,660,360.82, 39,552,960.28 and 21,583,283.90 is: 29,786,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660,360.82 : 39,552,960.28 = 21,583,283.90 : x
  2. Step 2: Convert to fraction form
    28,660,360.82/39,552,960.28 = 21,583,283.90/x
  3. Step 3: Cross multiply
    28,660,360.82x = 39,552,960.28 × 21,583,283.90
  4. Step 4: Simplify right side
    28,660,360.82x = 853,682,770,808,663.50
  5. Step 5: Solve for x
    x = 853,682,770,808,663.50/28,660,360.82
  6. Step 6: Final answer
    x = 29,786,183.65

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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.