Home / 12,990,854.60-19,469,693.10-9,984,134.60

Finding the Fourth Proportional to 12,990,854.60, 19,469,693.10 and 9,984,134.60

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Solution

The fourth proportional to 12,990,854.60, 19,469,693.10 and 9,984,134.60 is: 14,963,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,854.60 : 19,469,693.10 = 9,984,134.60 : x
  2. Step 2: Convert to fraction form
    12,990,854.60/19,469,693.10 = 9,984,134.60/x
  3. Step 3: Cross multiply
    12,990,854.60x = 19,469,693.10 × 9,984,134.60
  4. Step 4: Simplify right side
    12,990,854.60x = 194,388,036,531,091.28
  5. Step 5: Solve for x
    x = 194,388,036,531,091.28/12,990,854.60
  6. Step 6: Final answer
    x = 14,963,452.56

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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.