Home / 20,984,798.28-31,478,321.70-6,608,986.32

Finding the Fourth Proportional to 20,984,798.28, 31,478,321.70 and 6,608,986.32

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Solution

The fourth proportional to 20,984,798.28, 31,478,321.70 and 6,608,986.32 is: 9,913,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984,798.28 : 31,478,321.70 = 6,608,986.32 : x
  2. Step 2: Convert to fraction form
    20,984,798.28/31,478,321.70 = 6,608,986.32/x
  3. Step 3: Cross multiply
    20,984,798.28x = 31,478,321.70 × 6,608,986.32
  4. Step 4: Simplify right side
    20,984,798.28x = 208,039,797,491,859.16
  5. Step 5: Solve for x
    x = 208,039,797,491,859.16/20,984,798.28
  6. Step 6: Final answer
    x = 9,913,833.56

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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.