Home / 20,969,969.45-31,456,773.02-6,400,173.02

Finding the Fourth Proportional to 20,969,969.45, 31,456,773.02 and 6,400,173.02

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Solution

The fourth proportional to 20,969,969.45, 31,456,773.02 and 6,400,173.02 is: 9,600,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,969.45 : 31,456,773.02 = 6,400,173.02 : x
  2. Step 2: Convert to fraction form
    20,969,969.45/31,456,773.02 = 6,400,173.02/x
  3. Step 3: Cross multiply
    20,969,969.45x = 31,456,773.02 × 6,400,173.02
  4. Step 4: Simplify right side
    20,969,969.45x = 201,328,789,837,584.47
  5. Step 5: Solve for x
    x = 201,328,789,837,584.47/20,969,969.45
  6. Step 6: Final answer
    x = 9,600,814.65

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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.