Home / 139,871,998.20-209,807,997.30-137,184,612.60

Finding the Fourth Proportional to 139,871,998.20, 209,807,997.30 and 137,184,612.60

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Solution

The fourth proportional to 139,871,998.20, 209,807,997.30 and 137,184,612.60 is: 205,776,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,871,998.20 : 209,807,997.30 = 137,184,612.60 : x
  2. Step 2: Convert to fraction form
    139,871,998.20/209,807,997.30 = 137,184,612.60/x
  3. Step 3: Cross multiply
    139,871,998.20x = 209,807,997.30 × 137,184,612.60
  4. Step 4: Simplify right side
    139,871,998.20x = 28,782,428,829,982,348
  5. Step 5: Solve for x
    x = 28,782,428,829,982,348/139,871,998.20
  6. Step 6: Final answer
    x = 205,776,918.90

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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.