Home / 20,792,063.99-28,694,124.47-11,972,825.20

Finding the Fourth Proportional to 20,792,063.99, 28,694,124.47 and 11,972,825.20

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Solution

The fourth proportional to 20,792,063.99, 28,694,124.47 and 11,972,825.20 is: 16,523,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792,063.99 : 28,694,124.47 = 11,972,825.20 : x
  2. Step 2: Convert to fraction form
    20,792,063.99/28,694,124.47 = 11,972,825.20/x
  3. Step 3: Cross multiply
    20,792,063.99x = 28,694,124.47 × 11,972,825.20
  4. Step 4: Simplify right side
    20,792,063.99x = 343,549,736,504,549.38
  5. Step 5: Solve for x
    x = 343,549,736,504,549.38/20,792,063.99
  6. Step 6: Final answer
    x = 16,523,118.47

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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.