Home / 231,093,068.40-318,372,457.20-161,368,009.20

Finding the Fourth Proportional to 231,093,068.40, 318,372,457.20 and 161,368,009.20

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Solution

The fourth proportional to 231,093,068.40, 318,372,457.20 and 161,368,009.20 is: 222,313,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,093,068.40 : 318,372,457.20 = 161,368,009.20 : x
  2. Step 2: Convert to fraction form
    231,093,068.40/318,372,457.20 = 161,368,009.20/x
  3. Step 3: Cross multiply
    231,093,068.40x = 318,372,457.20 × 161,368,009.20
  4. Step 4: Simplify right side
    231,093,068.40x = 51,375,129,602,476,200
  5. Step 5: Solve for x
    x = 51,375,129,602,476,200/231,093,068.40
  6. Step 6: Final answer
    x = 222,313,589.75

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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.