Home / 8,150,078.80-12,225,118.20-5,280,297.40

Finding the Fourth Proportional to 8,150,078.80, 12,225,118.20 and 5,280,297.40

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Solution

The fourth proportional to 8,150,078.80, 12,225,118.20 and 5,280,297.40 is: 7,920,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150,078.80 : 12,225,118.20 = 5,280,297.40 : x
  2. Step 2: Convert to fraction form
    8,150,078.80/12,225,118.20 = 5,280,297.40/x
  3. Step 3: Cross multiply
    8,150,078.80x = 12,225,118.20 × 5,280,297.40
  4. Step 4: Simplify right side
    8,150,078.80x = 64,552,259,846,152.68
  5. Step 5: Solve for x
    x = 64,552,259,846,152.68/8,150,078.80
  6. Step 6: Final answer
    x = 7,920,446.10

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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.