Home / 217,243,962.15-326,243,856.83-115,207,290.15

Finding the Fourth Proportional to 217,243,962.15, 326,243,856.83 and 115,207,290.15

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Solution

The fourth proportional to 217,243,962.15, 326,243,856.83 and 115,207,290.15 is: 173,011,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,243,962.15 : 326,243,856.83 = 115,207,290.15 : x
  2. Step 2: Convert to fraction form
    217,243,962.15/326,243,856.83 = 115,207,290.15/x
  3. Step 3: Cross multiply
    217,243,962.15x = 326,243,856.83 × 115,207,290.15
  4. Step 4: Simplify right side
    217,243,962.15x = 37,585,670,672,892,832
  5. Step 5: Solve for x
    x = 37,585,670,672,892,832/217,243,962.15
  6. Step 6: Final answer
    x = 173,011,347.71

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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.