Home / 131,471,715.60-196,829,659.80-80,453,379.60

Finding the Fourth Proportional to 131,471,715.60, 196,829,659.80 and 80,453,379.60

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Solution

The fourth proportional to 131,471,715.60, 196,829,659.80 and 80,453,379.60 is: 120,448,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,715.60 : 196,829,659.80 = 80,453,379.60 : x
  2. Step 2: Convert to fraction form
    131,471,715.60/196,829,659.80 = 80,453,379.60/x
  3. Step 3: Cross multiply
    131,471,715.60x = 196,829,659.80 × 80,453,379.60
  4. Step 4: Simplify right side
    131,471,715.60x = 15,835,611,336,428,260
  5. Step 5: Solve for x
    x = 15,835,611,336,428,260/131,471,715.60
  6. Step 6: Final answer
    x = 120,448,807.29

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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.