Home / 13,207,999.20-19,811,998.80-11,318,431.20

Finding the Fourth Proportional to 13,207,999.20, 19,811,998.80 and 11,318,431.20

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Solution

The fourth proportional to 13,207,999.20, 19,811,998.80 and 11,318,431.20 is: 16,977,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,999.20 : 19,811,998.80 = 11,318,431.20 : x
  2. Step 2: Convert to fraction form
    13,207,999.20/19,811,998.80 = 11,318,431.20/x
  3. Step 3: Cross multiply
    13,207,999.20x = 19,811,998.80 × 11,318,431.20
  4. Step 4: Simplify right side
    13,207,999.20x = 224,240,745,352,282.56
  5. Step 5: Solve for x
    x = 224,240,745,352,282.56/13,207,999.20
  6. Step 6: Final answer
    x = 16,977,646.80

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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.