Home / 20,992,089.60-28,969,643.52-11,824,185.60

Finding the Fourth Proportional to 20,992,089.60, 28,969,643.52 and 11,824,185.60

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Solution

The fourth proportional to 20,992,089.60, 28,969,643.52 and 11,824,185.60 is: 16,317,691.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992,089.60 : 28,969,643.52 = 11,824,185.60 : x
  2. Step 2: Convert to fraction form
    20,992,089.60/28,969,643.52 = 11,824,185.60/x
  3. Step 3: Cross multiply
    20,992,089.60x = 28,969,643.52 × 11,824,185.60
  4. Step 4: Simplify right side
    20,992,089.60x = 342,542,441,746,317.31
  5. Step 5: Solve for x
    x = 342,542,441,746,317.31/20,992,089.60
  6. Step 6: Final answer
    x = 16,317,691.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.