Home / 20,212,209.40-30,318,314.10-8,083,544.80

Finding the Fourth Proportional to 20,212,209.40, 30,318,314.10 and 8,083,544.80

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Solution

The fourth proportional to 20,212,209.40, 30,318,314.10 and 8,083,544.80 is: 12,125,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,209.40 : 30,318,314.10 = 8,083,544.80 : x
  2. Step 2: Convert to fraction form
    20,212,209.40/30,318,314.10 = 8,083,544.80/x
  3. Step 3: Cross multiply
    20,212,209.40x = 30,318,314.10 × 8,083,544.80
  4. Step 4: Simplify right side
    20,212,209.40x = 245,079,450,287,821.69
  5. Step 5: Solve for x
    x = 245,079,450,287,821.69/20,212,209.40
  6. Step 6: Final answer
    x = 12,125,317.20

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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.