Home / 131,471,689.60-196,829,620.80-80,453,353.60

Finding the Fourth Proportional to 131,471,689.60, 196,829,620.80 and 80,453,353.60

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Solution

The fourth proportional to 131,471,689.60, 196,829,620.80 and 80,453,353.60 is: 120,448,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,689.60 : 196,829,620.80 = 80,453,353.60 : x
  2. Step 2: Convert to fraction form
    131,471,689.60/196,829,620.80 = 80,453,353.60/x
  3. Step 3: Cross multiply
    131,471,689.60x = 196,829,620.80 × 80,453,353.60
  4. Step 4: Simplify right side
    131,471,689.60x = 15,835,603,081,176,314
  5. Step 5: Solve for x
    x = 15,835,603,081,176,314/131,471,689.60
  6. Step 6: Final answer
    x = 120,448,768.32

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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.