Home / 30,285,517.80-45,428,276.70-18,192,282.60

Finding the Fourth Proportional to 30,285,517.80, 45,428,276.70 and 18,192,282.60

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Solution

The fourth proportional to 30,285,517.80, 45,428,276.70 and 18,192,282.60 is: 27,288,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285,517.80 : 45,428,276.70 = 18,192,282.60 : x
  2. Step 2: Convert to fraction form
    30,285,517.80/45,428,276.70 = 18,192,282.60/x
  3. Step 3: Cross multiply
    30,285,517.80x = 45,428,276.70 × 18,192,282.60
  4. Step 4: Simplify right side
    30,285,517.80x = 826,444,047,757,395.50
  5. Step 5: Solve for x
    x = 826,444,047,757,395.50/30,285,517.80
  6. Step 6: Final answer
    x = 27,288,423.90

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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.