Home / 107,850,770.76-148,861,745.82-66,573,945.12

Finding the Fourth Proportional to 107,850,770.76, 148,861,745.82 and 66,573,945.12

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Solution

The fourth proportional to 107,850,770.76, 148,861,745.82 and 66,573,945.12 is: 91,889,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,850,770.76 : 148,861,745.82 = 66,573,945.12 : x
  2. Step 2: Convert to fraction form
    107,850,770.76/148,861,745.82 = 66,573,945.12/x
  3. Step 3: Cross multiply
    107,850,770.76x = 148,861,745.82 × 66,573,945.12
  4. Step 4: Simplify right side
    107,850,770.76x = 9,910,313,696,688,068
  5. Step 5: Solve for x
    x = 9,910,313,696,688,068/107,850,770.76
  6. Step 6: Final answer
    x = 91,889,131.87

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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.