Home / 19,700,512.80-29,568,934.50-9,991,939.56

Finding the Fourth Proportional to 19,700,512.80, 29,568,934.50 and 9,991,939.56

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Solution

The fourth proportional to 19,700,512.80, 29,568,934.50 and 9,991,939.56 is: 14,997,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700,512.80 : 29,568,934.50 = 9,991,939.56 : x
  2. Step 2: Convert to fraction form
    19,700,512.80/29,568,934.50 = 9,991,939.56/x
  3. Step 3: Cross multiply
    19,700,512.80x = 29,568,934.50 × 9,991,939.56
  4. Step 4: Simplify right side
    19,700,512.80x = 295,451,006,377,598.81
  5. Step 5: Solve for x
    x = 295,451,006,377,598.81/19,700,512.80
  6. Step 6: Final answer
    x = 14,997,122.63

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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.