Home / 20,215,804.80-30,334,204.80-8,857,401.60

Finding the Fourth Proportional to 20,215,804.80, 30,334,204.80 and 8,857,401.60

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Solution

The fourth proportional to 20,215,804.80, 30,334,204.80 and 8,857,401.60 is: 13,290,701.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,804.80 : 30,334,204.80 = 8,857,401.60 : x
  2. Step 2: Convert to fraction form
    20,215,804.80/30,334,204.80 = 8,857,401.60/x
  3. Step 3: Cross multiply
    20,215,804.80x = 30,334,204.80 × 8,857,401.60
  4. Step 4: Simplify right side
    20,215,804.80x = 268,682,234,130,247.69
  5. Step 5: Solve for x
    x = 268,682,234,130,247.69/20,215,804.80
  6. Step 6: Final answer
    x = 13,290,701.84

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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.