Home / 136,676,972.35-188,614,099.02-77,150,800.81

Finding the Fourth Proportional to 136,676,972.35, 188,614,099.02 and 77,150,800.81

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Solution

The fourth proportional to 136,676,972.35, 188,614,099.02 and 77,150,800.81 is: 106,468,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,676,972.35 : 188,614,099.02 = 77,150,800.81 : x
  2. Step 2: Convert to fraction form
    136,676,972.35/188,614,099.02 = 77,150,800.81/x
  3. Step 3: Cross multiply
    136,676,972.35x = 188,614,099.02 × 77,150,800.81
  4. Step 4: Simplify right side
    136,676,972.35x = 14,551,728,783,449,638
  5. Step 5: Solve for x
    x = 14,551,728,783,449,638/136,676,972.35
  6. Step 6: Final answer
    x = 106,468,035.79

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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.