Home / 148,686,770.82-205,175,699.42-85,966,896.80

Finding the Fourth Proportional to 148,686,770.82, 205,175,699.42 and 85,966,896.80

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Solution

The fourth proportional to 148,686,770.82, 205,175,699.42 and 85,966,896.80 is: 118,627,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,686,770.82 : 205,175,699.42 = 85,966,896.80 : x
  2. Step 2: Convert to fraction form
    148,686,770.82/205,175,699.42 = 85,966,896.80/x
  3. Step 3: Cross multiply
    148,686,770.82x = 205,175,699.42 × 85,966,896.80
  4. Step 4: Simplify right side
    148,686,770.82x = 17,638,318,177,906,958
  5. Step 5: Solve for x
    x = 17,638,318,177,906,958/148,686,770.82
  6. Step 6: Final answer
    x = 118,627,353.87

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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.