Home / 13,310,076.50-18,367,905.60-7,198,505

Finding the Fourth Proportional to 13,310,076.50, 18,367,905.60 and 7,198,505

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Solution

The fourth proportional to 13,310,076.50, 18,367,905.60 and 7,198,505 is: 9,933,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,076.50 : 18,367,905.60 = 7,198,505 : x
  2. Step 2: Convert to fraction form
    13,310,076.50/18,367,905.60 = 7,198,505/x
  3. Step 3: Cross multiply
    13,310,076.50x = 18,367,905.60 × 7,198,505
  4. Step 4: Simplify right side
    13,310,076.50x = 132,221,460,301,128.02
  5. Step 5: Solve for x
    x = 132,221,460,301,128.02/13,310,076.50
  6. Step 6: Final answer
    x = 9,933,936.92

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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.