Home / 20,593,146.80-30,889,720.20-12,090,090.80

Finding the Fourth Proportional to 20,593,146.80, 30,889,720.20 and 12,090,090.80

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Solution

The fourth proportional to 20,593,146.80, 30,889,720.20 and 12,090,090.80 is: 18,135,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593,146.80 : 30,889,720.20 = 12,090,090.80 : x
  2. Step 2: Convert to fraction form
    20,593,146.80/30,889,720.20 = 12,090,090.80/x
  3. Step 3: Cross multiply
    20,593,146.80x = 30,889,720.20 × 12,090,090.80
  4. Step 4: Simplify right side
    20,593,146.80x = 373,459,522,004,594.19
  5. Step 5: Solve for x
    x = 373,459,522,004,594.19/20,593,146.80
  6. Step 6: Final answer
    x = 18,135,136.20

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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.