Home / 13,149,177.40-19,723,766.10-7,409,614.60

Finding the Fourth Proportional to 13,149,177.40, 19,723,766.10 and 7,409,614.60

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Solution

The fourth proportional to 13,149,177.40, 19,723,766.10 and 7,409,614.60 is: 11,114,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,177.40 : 19,723,766.10 = 7,409,614.60 : x
  2. Step 2: Convert to fraction form
    13,149,177.40/19,723,766.10 = 7,409,614.60/x
  3. Step 3: Cross multiply
    13,149,177.40x = 19,723,766.10 × 7,409,614.60
  4. Step 4: Simplify right side
    13,149,177.40x = 146,145,505,261,545.06
  5. Step 5: Solve for x
    x = 146,145,505,261,545.06/13,149,177.40
  6. Step 6: Final answer
    x = 11,114,421.90

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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.