Home / 780,238,105.20-1,170,354,825-197,971,225.20

Finding the Fourth Proportional to 780,238,105.20, 1,170,354,825 and 197,971,225.20

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Solution

The fourth proportional to 780,238,105.20, 1,170,354,825 and 197,971,225.20 is: 296,956,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,238,105.20 : 1,170,354,825 = 197,971,225.20 : x
  2. Step 2: Convert to fraction form
    780,238,105.20/1,170,354,825 = 197,971,225.20/x
  3. Step 3: Cross multiply
    780,238,105.20x = 1,170,354,825 × 197,971,225.20
  4. Step 4: Simplify right side
    780,238,105.20x = 231,696,578,623,981,568
  5. Step 5: Solve for x
    x = 231,696,578,623,981,568/780,238,105.20
  6. Step 6: Final answer
    x = 296,956,245.89

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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.