Home / 18,720,202.50-28,080,303.75-4,536,778.50

Finding the Fourth Proportional to 18,720,202.50, 28,080,303.75 and 4,536,778.50

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Solution

The fourth proportional to 18,720,202.50, 28,080,303.75 and 4,536,778.50 is: 6,805,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,202.50 : 28,080,303.75 = 4,536,778.50 : x
  2. Step 2: Convert to fraction form
    18,720,202.50/28,080,303.75 = 4,536,778.50/x
  3. Step 3: Cross multiply
    18,720,202.50x = 28,080,303.75 × 4,536,778.50
  4. Step 4: Simplify right side
    18,720,202.50x = 127,394,118,326,469.38
  5. Step 5: Solve for x
    x = 127,394,118,326,469.38/18,720,202.50
  6. Step 6: Final answer
    x = 6,805,167.75

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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.