Home / 20,960,107.80-31,365,512.10-14,540,242.20

Finding the Fourth Proportional to 20,960,107.80, 31,365,512.10 and 14,540,242.20

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Solution

The fourth proportional to 20,960,107.80, 31,365,512.10 and 14,540,242.20 is: 21,758,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960,107.80 : 31,365,512.10 = 14,540,242.20 : x
  2. Step 2: Convert to fraction form
    20,960,107.80/31,365,512.10 = 14,540,242.20/x
  3. Step 3: Cross multiply
    20,960,107.80x = 31,365,512.10 × 14,540,242.20
  4. Step 4: Simplify right side
    20,960,107.80x = 456,062,142,661,030.62
  5. Step 5: Solve for x
    x = 456,062,142,661,030.62/20,960,107.80
  6. Step 6: Final answer
    x = 21,758,578.11

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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.