Home / 20,795,880.66-31,181,814.09-6,415,087.20

Finding the Fourth Proportional to 20,795,880.66, 31,181,814.09 and 6,415,087.20

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Solution

The fourth proportional to 20,795,880.66, 31,181,814.09 and 6,415,087.20 is: 9,618,926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795,880.66 : 31,181,814.09 = 6,415,087.20 : x
  2. Step 2: Convert to fraction form
    20,795,880.66/31,181,814.09 = 6,415,087.20/x
  3. Step 3: Cross multiply
    20,795,880.66x = 31,181,814.09 × 6,415,087.20
  4. Step 4: Simplify right side
    20,795,880.66x = 200,034,056,441,538.66
  5. Step 5: Solve for x
    x = 200,034,056,441,538.66/20,795,880.66
  6. Step 6: Final answer
    x = 9,618,926.93

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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.