Home / 20,186,485.80-30,243,643.20-12,284,854.80

Finding the Fourth Proportional to 20,186,485.80, 30,243,643.20 and 12,284,854.80

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Solution

The fourth proportional to 20,186,485.80, 30,243,643.20 and 12,284,854.80 is: 18,405,321.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,485.80 : 30,243,643.20 = 12,284,854.80 : x
  2. Step 2: Convert to fraction form
    20,186,485.80/30,243,643.20 = 12,284,854.80/x
  3. Step 3: Cross multiply
    20,186,485.80x = 30,243,643.20 × 12,284,854.80
  4. Step 4: Simplify right side
    20,186,485.80x = 371,538,765,335,007.38
  5. Step 5: Solve for x
    x = 371,538,765,335,007.38/20,186,485.80
  6. Step 6: Final answer
    x = 18,405,321.71

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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.