Home / 18,721,774.56-28,032,199.46-12,228,771.12

Finding the Fourth Proportional to 18,721,774.56, 28,032,199.46 and 12,228,771.12

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Solution

The fourth proportional to 18,721,774.56, 28,032,199.46 and 12,228,771.12 is: 18,310,195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,774.56 : 28,032,199.46 = 12,228,771.12 : x
  2. Step 2: Convert to fraction form
    18,721,774.56/28,032,199.46 = 12,228,771.12/x
  3. Step 3: Cross multiply
    18,721,774.56x = 28,032,199.46 × 12,228,771.12
  4. Step 4: Simplify right side
    18,721,774.56x = 342,799,351,186,527.56
  5. Step 5: Solve for x
    x = 342,799,351,186,527.56/18,721,774.56
  6. Step 6: Final answer
    x = 18,310,195.44

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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.