Home / 5,109,999.40-7,662,083.10-1,915,229.80

Finding the Fourth Proportional to 5,109,999.40, 7,662,083.10 and 1,915,229.80

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Solution

The fourth proportional to 5,109,999.40, 7,662,083.10 and 1,915,229.80 is: 2,871,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109,999.40 : 7,662,083.10 = 1,915,229.80 : x
  2. Step 2: Convert to fraction form
    5,109,999.40/7,662,083.10 = 1,915,229.80/x
  3. Step 3: Cross multiply
    5,109,999.40x = 7,662,083.10 × 1,915,229.80
  4. Step 4: Simplify right side
    5,109,999.40x = 14,674,649,883,196.38
  5. Step 5: Solve for x
    x = 14,674,649,883,196.38/5,109,999.40
  6. Step 6: Final answer
    x = 2,871,751.78

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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.