Home / 131,471,769.60-196,829,740.80-80,453,433.60

Finding the Fourth Proportional to 131,471,769.60, 196,829,740.80 and 80,453,433.60

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Solution

The fourth proportional to 131,471,769.60, 196,829,740.80 and 80,453,433.60 is: 120,448,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,769.60 : 196,829,740.80 = 80,453,433.60 : x
  2. Step 2: Convert to fraction form
    131,471,769.60/196,829,740.80 = 80,453,433.60/x
  3. Step 3: Cross multiply
    131,471,769.60x = 196,829,740.80 × 80,453,433.60
  4. Step 4: Simplify right side
    131,471,769.60x = 15,835,628,481,958,010
  5. Step 5: Solve for x
    x = 15,835,628,481,958,010/131,471,769.60
  6. Step 6: Final answer
    x = 120,448,888.23

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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.