Home / 1,987,664,088.20-2,981,468,138.70-897,145,406.60

Finding the Fourth Proportional to 1,987,664,088.20, 2,981,468,138.70 and 897,145,406.60

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Solution

The fourth proportional to 1,987,664,088.20, 2,981,468,138.70 and 897,145,406.60 is: 1,345,705,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,664,088.20 : 2,981,468,138.70 = 897,145,406.60 : x
  2. Step 2: Convert to fraction form
    1,987,664,088.20/2,981,468,138.70 = 897,145,406.60/x
  3. Step 3: Cross multiply
    1,987,664,088.20x = 2,981,468,138.70 × 897,145,406.60
  4. Step 4: Simplify right side
    1,987,664,088.20x = 2,674,810,445,558,956,544
  5. Step 5: Solve for x
    x = 2,674,810,445,558,956,544/1,987,664,088.20
  6. Step 6: Final answer
    x = 1,345,705,474.80

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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.