Home / 21,916,538.46-30,247,377.75-12,749,567.58

Finding the Fourth Proportional to 21,916,538.46, 30,247,377.75 and 12,749,567.58

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Solution

The fourth proportional to 21,916,538.46, 30,247,377.75 and 12,749,567.58 is: 17,595,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916,538.46 : 30,247,377.75 = 12,749,567.58 : x
  2. Step 2: Convert to fraction form
    21,916,538.46/30,247,377.75 = 12,749,567.58/x
  3. Step 3: Cross multiply
    21,916,538.46x = 30,247,377.75 × 12,749,567.58
  4. Step 4: Simplify right side
    21,916,538.46x = 385,640,986,741,413.38
  5. Step 5: Solve for x
    x = 385,640,986,741,413.38/21,916,538.46
  6. Step 6: Final answer
    x = 17,595,889.40

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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.