Home / 18,889,470.30-28,334,205.45-11,331,198.30

Finding the Fourth Proportional to 18,889,470.30, 28,334,205.45 and 11,331,198.30

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Solution

The fourth proportional to 18,889,470.30, 28,334,205.45 and 11,331,198.30 is: 16,996,797.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,470.30 : 28,334,205.45 = 11,331,198.30 : x
  2. Step 2: Convert to fraction form
    18,889,470.30/28,334,205.45 = 11,331,198.30/x
  3. Step 3: Cross multiply
    18,889,470.30x = 28,334,205.45 × 11,331,198.30
  4. Step 4: Simplify right side
    18,889,470.30x = 321,060,500,626,890.75
  5. Step 5: Solve for x
    x = 321,060,500,626,890.75/18,889,470.30
  6. Step 6: Final answer
    x = 16,996,797.45

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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.