Home / 15,503,708.50-21,394,908.75-8,628,188.74

Finding the Fourth Proportional to 15,503,708.50, 21,394,908.75 and 8,628,188.74

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Solution

The fourth proportional to 15,503,708.50, 21,394,908.75 and 8,628,188.74 is: 11,906,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503,708.50 : 21,394,908.75 = 8,628,188.74 : x
  2. Step 2: Convert to fraction form
    15,503,708.50/21,394,908.75 = 8,628,188.74/x
  3. Step 3: Cross multiply
    15,503,708.50x = 21,394,908.75 × 8,628,188.74
  4. Step 4: Simplify right side
    15,503,708.50x = 184,599,310,770,077.47
  5. Step 5: Solve for x
    x = 184,599,310,770,077.47/15,503,708.50
  6. Step 6: Final answer
    x = 11,906,784.16

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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.