Home / 20,202,922.80-30,304,384.20-12,125,019.60

Finding the Fourth Proportional to 20,202,922.80, 30,304,384.20 and 12,125,019.60

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Solution

The fourth proportional to 20,202,922.80, 30,304,384.20 and 12,125,019.60 is: 18,187,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,922.80 : 30,304,384.20 = 12,125,019.60 : x
  2. Step 2: Convert to fraction form
    20,202,922.80/30,304,384.20 = 12,125,019.60/x
  3. Step 3: Cross multiply
    20,202,922.80x = 30,304,384.20 × 12,125,019.60
  4. Step 4: Simplify right side
    20,202,922.80x = 367,441,252,390,930.31
  5. Step 5: Solve for x
    x = 367,441,252,390,930.31/20,202,922.80
  6. Step 6: Final answer
    x = 18,187,529.40

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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.