Home / 315,753,175.15-435,690,973.96-181,765,191.70

Finding the Fourth Proportional to 315,753,175.15, 435,690,973.96 and 181,765,191.70

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Solution

The fourth proportional to 315,753,175.15, 435,690,973.96 and 181,765,191.70 is: 250,808,098.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,753,175.15 : 435,690,973.96 = 181,765,191.70 : x
  2. Step 2: Convert to fraction form
    315,753,175.15/435,690,973.96 = 181,765,191.70/x
  3. Step 3: Cross multiply
    315,753,175.15x = 435,690,973.96 × 181,765,191.70
  4. Step 4: Simplify right side
    315,753,175.15x = 79,193,453,403,799,104
  5. Step 5: Solve for x
    x = 79,193,453,403,799,104/315,753,175.15
  6. Step 6: Final answer
    x = 250,808,098.34

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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.