Home / 20,138,310.80-30,207,466.20-5,762,236.40

Finding the Fourth Proportional to 20,138,310.80, 30,207,466.20 and 5,762,236.40

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Solution

The fourth proportional to 20,138,310.80, 30,207,466.20 and 5,762,236.40 is: 8,643,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,310.80 : 30,207,466.20 = 5,762,236.40 : x
  2. Step 2: Convert to fraction form
    20,138,310.80/30,207,466.20 = 5,762,236.40/x
  3. Step 3: Cross multiply
    20,138,310.80x = 30,207,466.20 × 5,762,236.40
  4. Step 4: Simplify right side
    20,138,310.80x = 174,062,561,289,409.69
  5. Step 5: Solve for x
    x = 174,062,561,289,409.69/20,138,310.80
  6. Step 6: Final answer
    x = 8,643,354.60

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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.