Home / 442,871,727,067.20-664,243,093,346.40-128,770,098,139.20

Finding the Fourth Proportional to 442,871,727,067.20, 664,243,093,346.40 and 128,770,098,139.20

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Solution

The fourth proportional to 442,871,727,067.20, 664,243,093,346.40 and 128,770,098,139.20 is: 193,136,393,883.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,871,727,067.20 : 664,243,093,346.40 = 128,770,098,139.20 : x
  2. Step 2: Convert to fraction form
    442,871,727,067.20/664,243,093,346.40 = 128,770,098,139.20/x
  3. Step 3: Cross multiply
    442,871,727,067.20x = 664,243,093,346.40 × 128,770,098,139.20
  4. Step 4: Simplify right side
    442,871,727,067.20x = 85,534,648,318,501,719,113,728
  5. Step 5: Solve for x
    x = 85,534,648,318,501,719,113,728/442,871,727,067.20
  6. Step 6: Final answer
    x = 193,136,393,883.02

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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.