Home / 8,319,919.40-12,479,879.10-2,934,650.60

Finding the Fourth Proportional to 8,319,919.40, 12,479,879.10 and 2,934,650.60

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Solution

The fourth proportional to 8,319,919.40, 12,479,879.10 and 2,934,650.60 is: 4,401,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,919.40 : 12,479,879.10 = 2,934,650.60 : x
  2. Step 2: Convert to fraction form
    8,319,919.40/12,479,879.10 = 2,934,650.60/x
  3. Step 3: Cross multiply
    8,319,919.40x = 12,479,879.10 × 2,934,650.60
  4. Step 4: Simplify right side
    8,319,919.40x = 36,624,084,688,742.46
  5. Step 5: Solve for x
    x = 36,624,084,688,742.46/8,319,919.40
  6. Step 6: Final answer
    x = 4,401,975.90

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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.