Home / 217,237,781.66-326,061,448.07-79,196,812.97

Finding the Fourth Proportional to 217,237,781.66, 326,061,448.07 and 79,196,812.97

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Solution

The fourth proportional to 217,237,781.66, 326,061,448.07 and 79,196,812.97 is: 118,869,873.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,237,781.66 : 326,061,448.07 = 79,196,812.97 : x
  2. Step 2: Convert to fraction form
    217,237,781.66/326,061,448.07 = 79,196,812.97/x
  3. Step 3: Cross multiply
    217,237,781.66x = 326,061,448.07 × 79,196,812.97
  4. Step 4: Simplify right side
    217,237,781.66x = 25,823,027,517,500,868
  5. Step 5: Solve for x
    x = 25,823,027,517,500,868/217,237,781.66
  6. Step 6: Final answer
    x = 118,869,873.01

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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.