Home / 20,050,481.70-30,139,938.35-18,628,877.03

Finding the Fourth Proportional to 20,050,481.70, 30,139,938.35 and 18,628,877.03

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Solution

The fourth proportional to 20,050,481.70, 30,139,938.35 and 18,628,877.03 is: 28,002,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,050,481.70 : 30,139,938.35 = 18,628,877.03 : x
  2. Step 2: Convert to fraction form
    20,050,481.70/30,139,938.35 = 18,628,877.03/x
  3. Step 3: Cross multiply
    20,050,481.70x = 30,139,938.35 × 18,628,877.03
  4. Step 4: Simplify right side
    20,050,481.70x = 561,473,204,970,086.94
  5. Step 5: Solve for x
    x = 561,473,204,970,086.94/20,050,481.70
  6. Step 6: Final answer
    x = 28,002,978.35

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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.