Home / 311,380,298.40-467,070,447.60-196,718,512.80

Finding the Fourth Proportional to 311,380,298.40, 467,070,447.60 and 196,718,512.80

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Solution

The fourth proportional to 311,380,298.40, 467,070,447.60 and 196,718,512.80 is: 295,077,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,380,298.40 : 467,070,447.60 = 196,718,512.80 : x
  2. Step 2: Convert to fraction form
    311,380,298.40/467,070,447.60 = 196,718,512.80/x
  3. Step 3: Cross multiply
    311,380,298.40x = 467,070,447.60 × 196,718,512.80
  4. Step 4: Simplify right side
    311,380,298.40x = 91,881,403,824,702,336
  5. Step 5: Solve for x
    x = 91,881,403,824,702,336/311,380,298.40
  6. Step 6: Final answer
    x = 295,077,769.20

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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.