Home / 147,511,831.38-203,560,989.30-81,430,910.34

Finding the Fourth Proportional to 147,511,831.38, 203,560,989.30 and 81,430,910.34

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Solution

The fourth proportional to 147,511,831.38, 203,560,989.30 and 81,430,910.34 is: 112,371,709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,511,831.38 : 203,560,989.30 = 81,430,910.34 : x
  2. Step 2: Convert to fraction form
    147,511,831.38/203,560,989.30 = 81,430,910.34/x
  3. Step 3: Cross multiply
    147,511,831.38x = 203,560,989.30 × 81,430,910.34
  4. Step 4: Simplify right side
    147,511,831.38x = 16,576,156,668,410,002
  5. Step 5: Solve for x
    x = 16,576,156,668,410,002/147,511,831.38
  6. Step 6: Final answer
    x = 112,371,709.53

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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.