Home / 20,809,421.10-31,193,136.45-9,458,016.30

Finding the Fourth Proportional to 20,809,421.10, 31,193,136.45 and 9,458,016.30

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Solution

The fourth proportional to 20,809,421.10, 31,193,136.45 and 9,458,016.30 is: 14,177,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,421.10 : 31,193,136.45 = 9,458,016.30 : x
  2. Step 2: Convert to fraction form
    20,809,421.10/31,193,136.45 = 9,458,016.30/x
  3. Step 3: Cross multiply
    20,809,421.10x = 31,193,136.45 × 9,458,016.30
  4. Step 4: Simplify right side
    20,809,421.10x = 295,025,192,992,224.12
  5. Step 5: Solve for x
    x = 295,025,192,992,224.12/20,809,421.10
  6. Step 6: Final answer
    x = 14,177,482.00

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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.