Home / 989,981,697.20-1,484,049,379.78-334,474,301.09

Finding the Fourth Proportional to 989,981,697.20, 1,484,049,379.78 and 334,474,301.09

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Solution

The fourth proportional to 989,981,697.20, 1,484,049,379.78 and 334,474,301.09 is: 501,399,551.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,981,697.20 : 1,484,049,379.78 = 334,474,301.09 : x
  2. Step 2: Convert to fraction form
    989,981,697.20/1,484,049,379.78 = 334,474,301.09/x
  3. Step 3: Cross multiply
    989,981,697.20x = 1,484,049,379.78 × 334,474,301.09
  4. Step 4: Simplify right side
    989,981,697.20x = 496,376,379,089,074,880
  5. Step 5: Solve for x
    x = 496,376,379,089,074,880/989,981,697.20
  6. Step 6: Final answer
    x = 501,399,551.62

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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.