Home / 285,210,314.65-393,624,990.48-167,729,967.19

Finding the Fourth Proportional to 285,210,314.65, 393,624,990.48 and 167,729,967.19

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Solution

The fourth proportional to 285,210,314.65, 393,624,990.48 and 167,729,967.19 is: 231,487,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,210,314.65 : 393,624,990.48 = 167,729,967.19 : x
  2. Step 2: Convert to fraction form
    285,210,314.65/393,624,990.48 = 167,729,967.19/x
  3. Step 3: Cross multiply
    285,210,314.65x = 393,624,990.48 × 167,729,967.19
  4. Step 4: Simplify right side
    285,210,314.65x = 66,022,706,738,374,464
  5. Step 5: Solve for x
    x = 66,022,706,738,374,464/285,210,314.65
  6. Step 6: Final answer
    x = 231,487,794.61

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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.