Home / 217,948,803.10-326,760,491.85-131,669,028.70

Finding the Fourth Proportional to 217,948,803.10, 326,760,491.85 and 131,669,028.70

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Solution

The fourth proportional to 217,948,803.10, 326,760,491.85 and 131,669,028.70 is: 197,405,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,948,803.10 : 326,760,491.85 = 131,669,028.70 : x
  2. Step 2: Convert to fraction form
    217,948,803.10/326,760,491.85 = 131,669,028.70/x
  3. Step 3: Cross multiply
    217,948,803.10x = 326,760,491.85 × 131,669,028.70
  4. Step 4: Simplify right side
    217,948,803.10x = 43,024,236,579,423,768
  5. Step 5: Solve for x
    x = 43,024,236,579,423,768/217,948,803.10
  6. Step 6: Final answer
    x = 197,405,243.65

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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.