Home / 442,871,726,999.70-664,243,093,245.15-128,770,098,071.70

Finding the Fourth Proportional to 442,871,726,999.70, 664,243,093,245.15 and 128,770,098,071.70

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Solution

The fourth proportional to 442,871,726,999.70, 664,243,093,245.15 and 128,770,098,071.70 is: 193,136,393,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,726,999.70 : 664,243,093,245.15 = 128,770,098,071.70 : x
  2. Step 2: Convert to fraction form
    442,871,726,999.70/664,243,093,245.15 = 128,770,098,071.70/x
  3. Step 3: Cross multiply
    442,871,726,999.70x = 664,243,093,245.15 × 128,770,098,071.70
  4. Step 4: Simplify right side
    442,871,726,999.70x = 85,534,648,260,627,336,790,016
  5. Step 5: Solve for x
    x = 85,534,648,260,627,336,790,016/442,871,726,999.70
  6. Step 6: Final answer
    x = 193,136,393,781.77

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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.