Home / 12,122,938.50-18,187,403.94-3,603,239.43

Finding the Fourth Proportional to 12,122,938.50, 18,187,403.94 and 3,603,239.43

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Solution

The fourth proportional to 12,122,938.50, 18,187,403.94 and 3,603,239.43 is: 5,405,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122,938.50 : 18,187,403.94 = 3,603,239.43 : x
  2. Step 2: Convert to fraction form
    12,122,938.50/18,187,403.94 = 3,603,239.43/x
  3. Step 3: Cross multiply
    12,122,938.50x = 18,187,403.94 × 3,603,239.43
  4. Step 4: Simplify right side
    12,122,938.50x = 65,533,571,005,945.36
  5. Step 5: Solve for x
    x = 65,533,571,005,945.36/12,122,938.50
  6. Step 6: Final answer
    x = 5,405,749.69

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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.