Home / 13,041,019.80-19,561,529.70-8,191,128.60

Finding the Fourth Proportional to 13,041,019.80, 19,561,529.70 and 8,191,128.60

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Solution

The fourth proportional to 13,041,019.80, 19,561,529.70 and 8,191,128.60 is: 12,286,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041,019.80 : 19,561,529.70 = 8,191,128.60 : x
  2. Step 2: Convert to fraction form
    13,041,019.80/19,561,529.70 = 8,191,128.60/x
  3. Step 3: Cross multiply
    13,041,019.80x = 19,561,529.70 × 8,191,128.60
  4. Step 4: Simplify right side
    13,041,019.80x = 160,231,005,385,419.41
  5. Step 5: Solve for x
    x = 160,231,005,385,419.41/13,041,019.80
  6. Step 6: Final answer
    x = 12,286,692.90

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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.