Home / 12,290,624.60-18,435,936.90-6,621,920.60

Finding the Fourth Proportional to 12,290,624.60, 18,435,936.90 and 6,621,920.60

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Solution

The fourth proportional to 12,290,624.60, 18,435,936.90 and 6,621,920.60 is: 9,932,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,624.60 : 18,435,936.90 = 6,621,920.60 : x
  2. Step 2: Convert to fraction form
    12,290,624.60/18,435,936.90 = 6,621,920.60/x
  3. Step 3: Cross multiply
    12,290,624.60x = 18,435,936.90 × 6,621,920.60
  4. Step 4: Simplify right side
    12,290,624.60x = 122,081,310,338,410.12
  5. Step 5: Solve for x
    x = 122,081,310,338,410.12/12,290,624.60
  6. Step 6: Final answer
    x = 9,932,880.90

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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.