Home / 12,157,923.40-18,234,552.30-3,638,537.80

Finding the Fourth Proportional to 12,157,923.40, 18,234,552.30 and 3,638,537.80

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Solution

The fourth proportional to 12,157,923.40, 18,234,552.30 and 3,638,537.80 is: 5,457,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157,923.40 : 18,234,552.30 = 3,638,537.80 : x
  2. Step 2: Convert to fraction form
    12,157,923.40/18,234,552.30 = 3,638,537.80/x
  3. Step 3: Cross multiply
    12,157,923.40x = 18,234,552.30 × 3,638,537.80
  4. Step 4: Simplify right side
    12,157,923.40x = 66,347,107,809,626.94
  5. Step 5: Solve for x
    x = 66,347,107,809,626.94/12,157,923.40
  6. Step 6: Final answer
    x = 5,457,108.56

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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.