Home / 252,401,325.78-378,601,635.78-140,298,434.63

Finding the Fourth Proportional to 252,401,325.78, 378,601,635.78 and 140,298,434.63

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Solution

The fourth proportional to 252,401,325.78, 378,601,635.78 and 140,298,434.63 is: 210,447,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,401,325.78 : 378,601,635.78 = 140,298,434.63 : x
  2. Step 2: Convert to fraction form
    252,401,325.78/378,601,635.78 = 140,298,434.63/x
  3. Step 3: Cross multiply
    252,401,325.78x = 378,601,635.78 × 140,298,434.63
  4. Step 4: Simplify right side
    252,401,325.78x = 53,117,216,847,491,112
  5. Step 5: Solve for x
    x = 53,117,216,847,491,112/252,401,325.78
  6. Step 6: Final answer
    x = 210,447,455.79

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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.