Home / 85,298,059,145.45-117,715,021,789.08-47,236,266,143.12

Finding the Fourth Proportional to 85,298,059,145.45, 117,715,021,789.08 and 47,236,266,143.12

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Solution

The fourth proportional to 85,298,059,145.45, 117,715,021,789.08 and 47,236,266,143.12 is: 65,188,096,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,298,059,145.45 : 117,715,021,789.08 = 47,236,266,143.12 : x
  2. Step 2: Convert to fraction form
    85,298,059,145.45/117,715,021,789.08 = 47,236,266,143.12/x
  3. Step 3: Cross multiply
    85,298,059,145.45x = 117,715,021,789.08 × 47,236,266,143.12
  4. Step 4: Simplify right side
    85,298,059,145.45x = 5,560,418,098,272,152,846,336
  5. Step 5: Solve for x
    x = 5,560,418,098,272,152,846,336/85,298,059,145.45
  6. Step 6: Final answer
    x = 65,188,096,352.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.