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Finding the Fourth Proportional to 309,797,898.92, 464,747,326.44 and 91,470,310.88

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Solution

The fourth proportional to 309,797,898.92, 464,747,326.44 and 91,470,310.88 is: 137,220,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,797,898.92 : 464,747,326.44 = 91,470,310.88 : x
  2. Step 2: Convert to fraction form
    309,797,898.92/464,747,326.44 = 91,470,310.88/x
  3. Step 3: Cross multiply
    309,797,898.92x = 464,747,326.44 × 91,470,310.88
  4. Step 4: Simplify right side
    309,797,898.92x = 42,510,582,430,115,640
  5. Step 5: Solve for x
    x = 42,510,582,430,115,640/309,797,898.92
  6. Step 6: Final answer
    x = 137,220,370.37

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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.