Home / 20,485,358.10-30,728,037.15-14,028,349.95

Finding the Fourth Proportional to 20,485,358.10, 30,728,037.15 and 14,028,349.95

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Solution

The fourth proportional to 20,485,358.10, 30,728,037.15 and 14,028,349.95 is: 21,042,524.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,485,358.10 : 30,728,037.15 = 14,028,349.95 : x
  2. Step 2: Convert to fraction form
    20,485,358.10/30,728,037.15 = 14,028,349.95/x
  3. Step 3: Cross multiply
    20,485,358.10x = 30,728,037.15 × 14,028,349.95
  4. Step 4: Simplify right side
    20,485,358.10x = 431,063,658,416,800.62
  5. Step 5: Solve for x
    x = 431,063,658,416,800.62/20,485,358.10
  6. Step 6: Final answer
    x = 21,042,524.93

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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.