Home / 205,869,770.82-308,814,587.64-67,692,318.75

Finding the Fourth Proportional to 205,869,770.82, 308,814,587.64 and 67,692,318.75

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Solution

The fourth proportional to 205,869,770.82, 308,814,587.64 and 67,692,318.75 is: 101,541,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,869,770.82 : 308,814,587.64 = 67,692,318.75 : x
  2. Step 2: Convert to fraction form
    205,869,770.82/308,814,587.64 = 67,692,318.75/x
  3. Step 3: Cross multiply
    205,869,770.82x = 308,814,587.64 × 67,692,318.75
  4. Step 4: Simplify right side
    205,869,770.82x = 20,904,375,501,176,688
  5. Step 5: Solve for x
    x = 20,904,375,501,176,688/205,869,770.82
  6. Step 6: Final answer
    x = 101,541,743.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.