Home / 20,809,426.60-31,193,144.70-9,458,021.80

Finding the Fourth Proportional to 20,809,426.60, 31,193,144.70 and 9,458,021.80

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Solution

The fourth proportional to 20,809,426.60, 31,193,144.70 and 9,458,021.80 is: 14,177,490.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,426.60 : 31,193,144.70 = 9,458,021.80 : x
  2. Step 2: Convert to fraction form
    20,809,426.60/31,193,144.70 = 9,458,021.80/x
  3. Step 3: Cross multiply
    20,809,426.60x = 31,193,144.70 × 9,458,021.80
  4. Step 4: Simplify right side
    20,809,426.60x = 295,025,442,583,154.50
  5. Step 5: Solve for x
    x = 295,025,442,583,154.50/20,809,426.60
  6. Step 6: Final answer
    x = 14,177,490.24

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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.