Home / 12,112,209.20-18,178,228.20-12,017,730.80

Finding the Fourth Proportional to 12,112,209.20, 18,178,228.20 and 12,017,730.80

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Solution

The fourth proportional to 12,112,209.20, 18,178,228.20 and 12,017,730.80 is: 18,036,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,209.20 : 18,178,228.20 = 12,017,730.80 : x
  2. Step 2: Convert to fraction form
    12,112,209.20/18,178,228.20 = 12,017,730.80/x
  3. Step 3: Cross multiply
    12,112,209.20x = 18,178,228.20 × 12,017,730.80
  4. Step 4: Simplify right side
    12,112,209.20x = 218,461,052,928,568.56
  5. Step 5: Solve for x
    x = 218,461,052,928,568.56/12,112,209.20
  6. Step 6: Final answer
    x = 18,036,433.27

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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.