Home / 315,753,170.40-435,690,967.42-181,765,186.94

Finding the Fourth Proportional to 315,753,170.40, 435,690,967.42 and 181,765,186.94

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Solution

The fourth proportional to 315,753,170.40, 435,690,967.42 and 181,765,186.94 is: 250,808,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,753,170.40 : 435,690,967.42 = 181,765,186.94 : x
  2. Step 2: Convert to fraction form
    315,753,170.40/435,690,967.42 = 181,765,186.94/x
  3. Step 3: Cross multiply
    315,753,170.40x = 435,690,967.42 × 181,765,186.94
  4. Step 4: Simplify right side
    315,753,170.40x = 79,193,450,141,165,744
  5. Step 5: Solve for x
    x = 79,193,450,141,165,744/315,753,170.40
  6. Step 6: Final answer
    x = 250,808,091.78

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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.