Home / 20,485,309.10-30,727,963.65-14,028,300.95

Finding the Fourth Proportional to 20,485,309.10, 30,727,963.65 and 14,028,300.95

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Solution

The fourth proportional to 20,485,309.10, 30,727,963.65 and 14,028,300.95 is: 21,042,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,485,309.10 : 30,727,963.65 = 14,028,300.95 : x
  2. Step 2: Convert to fraction form
    20,485,309.10/30,727,963.65 = 14,028,300.95/x
  3. Step 3: Cross multiply
    20,485,309.10x = 30,727,963.65 × 14,028,300.95
  4. Step 4: Simplify right side
    20,485,309.10x = 431,061,121,662,860.44
  5. Step 5: Solve for x
    x = 431,061,121,662,860.44/20,485,309.10
  6. Step 6: Final answer
    x = 21,042,451.43

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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.