Home / 20,187,996.80-30,281,995.20-11,684,940.80

Finding the Fourth Proportional to 20,187,996.80, 30,281,995.20 and 11,684,940.80

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Solution

The fourth proportional to 20,187,996.80, 30,281,995.20 and 11,684,940.80 is: 17,527,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,996.80 : 30,281,995.20 = 11,684,940.80 : x
  2. Step 2: Convert to fraction form
    20,187,996.80/30,281,995.20 = 11,684,940.80/x
  3. Step 3: Cross multiply
    20,187,996.80x = 30,281,995.20 × 11,684,940.80
  4. Step 4: Simplify right side
    20,187,996.80x = 353,843,321,217,884.19
  5. Step 5: Solve for x
    x = 353,843,321,217,884.19/20,187,996.80
  6. Step 6: Final answer
    x = 17,527,411.20

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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.