Home / 328,812,997.29-453,761,898.53-196,653,972.62

Finding the Fourth Proportional to 328,812,997.29, 453,761,898.53 and 196,653,972.62

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Solution

The fourth proportional to 328,812,997.29, 453,761,898.53 and 196,653,972.62 is: 271,382,459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,812,997.29 : 453,761,898.53 = 196,653,972.62 : x
  2. Step 2: Convert to fraction form
    328,812,997.29/453,761,898.53 = 196,653,972.62/x
  3. Step 3: Cross multiply
    328,812,997.29x = 453,761,898.53 × 196,653,972.62
  4. Step 4: Simplify right side
    328,812,997.29x = 89,234,079,969,517,840
  5. Step 5: Solve for x
    x = 89,234,079,969,517,840/328,812,997.29
  6. Step 6: Final answer
    x = 271,382,459.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.