Home / 207,586,189.60-311,379,284.40-131,144,999.20

Finding the Fourth Proportional to 207,586,189.60, 311,379,284.40 and 131,144,999.20

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Solution

The fourth proportional to 207,586,189.60, 311,379,284.40 and 131,144,999.20 is: 196,717,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,586,189.60 : 311,379,284.40 = 131,144,999.20 : x
  2. Step 2: Convert to fraction form
    207,586,189.60/311,379,284.40 = 131,144,999.20/x
  3. Step 3: Cross multiply
    207,586,189.60x = 311,379,284.40 × 131,144,999.20
  4. Step 4: Simplify right side
    207,586,189.60x = 40,835,836,003,534,568
  5. Step 5: Solve for x
    x = 40,835,836,003,534,568/207,586,189.60
  6. Step 6: Final answer
    x = 196,717,498.80

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1.5x scale

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.