Home / 107,105,500.32-147,866,286.69-81,940,263.72

Finding the Fourth Proportional to 107,105,500.32, 147,866,286.69 and 81,940,263.72

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Solution

The fourth proportional to 107,105,500.32, 147,866,286.69 and 81,940,263.72 is: 113,123,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,105,500.32 : 147,866,286.69 = 81,940,263.72 : x
  2. Step 2: Convert to fraction form
    107,105,500.32/147,866,286.69 = 81,940,263.72/x
  3. Step 3: Cross multiply
    107,105,500.32x = 147,866,286.69 × 81,940,263.72
  4. Step 4: Simplify right side
    107,105,500.32x = 12,116,202,526,675,726
  5. Step 5: Solve for x
    x = 12,116,202,526,675,726/107,105,500.32
  6. Step 6: Final answer
    x = 113,123,999.15

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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.