Home / 217,435,786.54-326,204,747.96-71,869,332.35

Finding the Fourth Proportional to 217,435,786.54, 326,204,747.96 and 71,869,332.35

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Solution

The fourth proportional to 217,435,786.54, 326,204,747.96 and 71,869,332.35 is: 107,820,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,435,786.54 : 326,204,747.96 = 71,869,332.35 : x
  2. Step 2: Convert to fraction form
    217,435,786.54/326,204,747.96 = 71,869,332.35/x
  3. Step 3: Cross multiply
    217,435,786.54x = 326,204,747.96 × 71,869,332.35
  4. Step 4: Simplify right side
    217,435,786.54x = 23,444,117,445,285,220
  5. Step 5: Solve for x
    x = 23,444,117,445,285,220/217,435,786.54
  6. Step 6: Final answer
    x = 107,820,878.15

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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.