Home / 1,987,663,399.20-2,981,467,105.20-897,144,717.60

Finding the Fourth Proportional to 1,987,663,399.20, 2,981,467,105.20 and 897,144,717.60

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Solution

The fourth proportional to 1,987,663,399.20, 2,981,467,105.20 and 897,144,717.60 is: 1,345,704,441.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,663,399.20 : 2,981,467,105.20 = 897,144,717.60 : x
  2. Step 2: Convert to fraction form
    1,987,663,399.20/2,981,467,105.20 = 897,144,717.60/x
  3. Step 3: Cross multiply
    1,987,663,399.20x = 2,981,467,105.20 × 897,144,717.60
  4. Step 4: Simplify right side
    1,987,663,399.20x = 2,674,807,464,128,343,552
  5. Step 5: Solve for x
    x = 2,674,807,464,128,343,552/1,987,663,399.20
  6. Step 6: Final answer
    x = 1,345,704,441.31

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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.