Home / 18,121,528.80-27,182,293.20-7,343,992.80

Finding the Fourth Proportional to 18,121,528.80, 27,182,293.20 and 7,343,992.80

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Solution

The fourth proportional to 18,121,528.80, 27,182,293.20 and 7,343,992.80 is: 11,015,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,528.80 : 27,182,293.20 = 7,343,992.80 : x
  2. Step 2: Convert to fraction form
    18,121,528.80/27,182,293.20 = 7,343,992.80/x
  3. Step 3: Cross multiply
    18,121,528.80x = 27,182,293.20 × 7,343,992.80
  4. Step 4: Simplify right side
    18,121,528.80x = 199,626,565,548,288.94
  5. Step 5: Solve for x
    x = 199,626,565,548,288.94/18,121,528.80
  6. Step 6: Final answer
    x = 11,015,989.20

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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.