Home / 20,640,168.60-30,960,252.90-11,074,230.60

Finding the Fourth Proportional to 20,640,168.60, 30,960,252.90 and 11,074,230.60

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Solution

The fourth proportional to 20,640,168.60, 30,960,252.90 and 11,074,230.60 is: 16,611,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,168.60 : 30,960,252.90 = 11,074,230.60 : x
  2. Step 2: Convert to fraction form
    20,640,168.60/30,960,252.90 = 11,074,230.60/x
  3. Step 3: Cross multiply
    20,640,168.60x = 30,960,252.90 × 11,074,230.60
  4. Step 4: Simplify right side
    20,640,168.60x = 342,860,980,048,918.69
  5. Step 5: Solve for x
    x = 342,860,980,048,918.69/20,640,168.60
  6. Step 6: Final answer
    x = 16,611,345.90

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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.