Home / 20,202,441.40-30,285,947.40-12,118,633.30

Finding the Fourth Proportional to 20,202,441.40, 30,285,947.40 and 12,118,633.30

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Solution

The fourth proportional to 20,202,441.40, 30,285,947.40 and 12,118,633.30 is: 18,167,323.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,441.40 : 30,285,947.40 = 12,118,633.30 : x
  2. Step 2: Convert to fraction form
    20,202,441.40/30,285,947.40 = 12,118,633.30/x
  3. Step 3: Cross multiply
    20,202,441.40x = 30,285,947.40 × 12,118,633.30
  4. Step 4: Simplify right side
    20,202,441.40x = 367,024,290,683,688.44
  5. Step 5: Solve for x
    x = 367,024,290,683,688.44/20,202,441.40
  6. Step 6: Final answer
    x = 18,167,323.61

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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.