Home / 13,247,999.80-19,871,999.70-12,408,191.80

Finding the Fourth Proportional to 13,247,999.80, 19,871,999.70 and 12,408,191.80

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Solution

The fourth proportional to 13,247,999.80, 19,871,999.70 and 12,408,191.80 is: 18,612,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,999.80 : 19,871,999.70 = 12,408,191.80 : x
  2. Step 2: Convert to fraction form
    13,247,999.80/19,871,999.70 = 12,408,191.80/x
  3. Step 3: Cross multiply
    13,247,999.80x = 19,871,999.70 × 12,408,191.80
  4. Step 4: Simplify right side
    13,247,999.80x = 246,575,583,727,142.47
  5. Step 5: Solve for x
    x = 246,575,583,727,142.47/13,247,999.80
  6. Step 6: Final answer
    x = 18,612,287.70

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1.5x scale

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.