Home / 20,219,447.80-30,329,171.70-8,847,825.40

Finding the Fourth Proportional to 20,219,447.80, 30,329,171.70 and 8,847,825.40

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Solution

The fourth proportional to 20,219,447.80, 30,329,171.70 and 8,847,825.40 is: 13,271,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,447.80 : 30,329,171.70 = 8,847,825.40 : x
  2. Step 2: Convert to fraction form
    20,219,447.80/30,329,171.70 = 8,847,825.40/x
  3. Step 3: Cross multiply
    20,219,447.80x = 30,329,171.70 × 8,847,825.40
  4. Step 4: Simplify right side
    20,219,447.80x = 268,347,215,728,221.19
  5. Step 5: Solve for x
    x = 268,347,215,728,221.19/20,219,447.80
  6. Step 6: Final answer
    x = 13,271,738.10

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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.