Home / 118,102,709.80-177,154,064.70-87,491,708.20

Finding the Fourth Proportional to 118,102,709.80, 177,154,064.70 and 87,491,708.20

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Solution

The fourth proportional to 118,102,709.80, 177,154,064.70 and 87,491,708.20 is: 131,237,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,102,709.80 : 177,154,064.70 = 87,491,708.20 : x
  2. Step 2: Convert to fraction form
    118,102,709.80/177,154,064.70 = 87,491,708.20/x
  3. Step 3: Cross multiply
    118,102,709.80x = 177,154,064.70 × 87,491,708.20
  4. Step 4: Simplify right side
    118,102,709.80x = 15,499,511,735,176,320
  5. Step 5: Solve for x
    x = 15,499,511,735,176,320/118,102,709.80
  6. Step 6: Final answer
    x = 131,237,562.30

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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.