Home / 18,693,630.70-28,040,446.05-10,603,480.30

Finding the Fourth Proportional to 18,693,630.70, 28,040,446.05 and 10,603,480.30

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Solution

The fourth proportional to 18,693,630.70, 28,040,446.05 and 10,603,480.30 is: 15,905,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,630.70 : 28,040,446.05 = 10,603,480.30 : x
  2. Step 2: Convert to fraction form
    18,693,630.70/28,040,446.05 = 10,603,480.30/x
  3. Step 3: Cross multiply
    18,693,630.70x = 28,040,446.05 × 10,603,480.30
  4. Step 4: Simplify right side
    18,693,630.70x = 297,326,317,294,387.88
  5. Step 5: Solve for x
    x = 297,326,317,294,387.88/18,693,630.70
  6. Step 6: Final answer
    x = 15,905,220.45

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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.