Home / 12,782,733.66-17,628,489.54-9,992,225.55

Finding the Fourth Proportional to 12,782,733.66, 17,628,489.54 and 9,992,225.55

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Solution

The fourth proportional to 12,782,733.66, 17,628,489.54 and 9,992,225.55 is: 13,780,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782,733.66 : 17,628,489.54 = 9,992,225.55 : x
  2. Step 2: Convert to fraction form
    12,782,733.66/17,628,489.54 = 9,992,225.55/x
  3. Step 3: Cross multiply
    12,782,733.66x = 17,628,489.54 × 9,992,225.55
  4. Step 4: Simplify right side
    12,782,733.66x = 176,147,843,589,495.75
  5. Step 5: Solve for x
    x = 176,147,843,589,495.75/12,782,733.66
  6. Step 6: Final answer
    x = 13,780,138.76

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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.