Home / 405,651,696.67-559,812,013.32-229,436,243.88

Finding the Fourth Proportional to 405,651,696.67, 559,812,013.32 and 229,436,243.88

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Solution

The fourth proportional to 405,651,696.67, 559,812,013.32 and 229,436,243.88 is: 316,629,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,651,696.67 : 559,812,013.32 = 229,436,243.88 : x
  2. Step 2: Convert to fraction form
    405,651,696.67/559,812,013.32 = 229,436,243.88/x
  3. Step 3: Cross multiply
    405,651,696.67x = 559,812,013.32 × 229,436,243.88
  4. Step 4: Simplify right side
    405,651,696.67x = 128,441,165,615,041,344
  5. Step 5: Solve for x
    x = 128,441,165,615,041,344/405,651,696.67
  6. Step 6: Final answer
    x = 316,629,183.78

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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.