Home / 19,008,004.20-28,512,006.30-11,431,069.80

Finding the Fourth Proportional to 19,008,004.20, 28,512,006.30 and 11,431,069.80

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Solution

The fourth proportional to 19,008,004.20, 28,512,006.30 and 11,431,069.80 is: 17,146,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,004.20 : 28,512,006.30 = 11,431,069.80 : x
  2. Step 2: Convert to fraction form
    19,008,004.20/28,512,006.30 = 11,431,069.80/x
  3. Step 3: Cross multiply
    19,008,004.20x = 28,512,006.30 × 11,431,069.80
  4. Step 4: Simplify right side
    19,008,004.20x = 325,922,734,153,339.75
  5. Step 5: Solve for x
    x = 325,922,734,153,339.75/19,008,004.20
  6. Step 6: Final answer
    x = 17,146,604.70

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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.