Home / 217,800,759.60-326,827,110.60-81,499,921.20

Finding the Fourth Proportional to 217,800,759.60, 326,827,110.60 and 81,499,921.20

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Solution

The fourth proportional to 217,800,759.60, 326,827,110.60 and 81,499,921.20 is: 122,297,019.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,800,759.60 : 326,827,110.60 = 81,499,921.20 : x
  2. Step 2: Convert to fraction form
    217,800,759.60/326,827,110.60 = 81,499,921.20/x
  3. Step 3: Cross multiply
    217,800,759.60x = 326,827,110.60 × 81,499,921.20
  4. Step 4: Simplify right side
    217,800,759.60x = 26,636,383,759,923,688
  5. Step 5: Solve for x
    x = 26,636,383,759,923,688/217,800,759.60
  6. Step 6: Final answer
    x = 122,297,019.57

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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.