Home / 18,720,205.50-28,080,308.26-4,536,781.50

Finding the Fourth Proportional to 18,720,205.50, 28,080,308.26 and 4,536,781.50

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Solution

The fourth proportional to 18,720,205.50, 28,080,308.26 and 4,536,781.50 is: 6,805,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,205.50 : 28,080,308.26 = 4,536,781.50 : x
  2. Step 2: Convert to fraction form
    18,720,205.50/28,080,308.26 = 4,536,781.50/x
  3. Step 3: Cross multiply
    18,720,205.50x = 28,080,308.26 × 4,536,781.50
  4. Step 4: Simplify right side
    18,720,205.50x = 127,394,223,028,265.20
  5. Step 5: Solve for x
    x = 127,394,223,028,265.20/18,720,205.50
  6. Step 6: Final answer
    x = 6,805,172.25

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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.