Home / 117,996,682.20-162,836,103.87-65,788,968.12

Finding the Fourth Proportional to 117,996,682.20, 162,836,103.87 and 65,788,968.12

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Solution

The fourth proportional to 117,996,682.20, 162,836,103.87 and 65,788,968.12 is: 90,789,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,996,682.20 : 162,836,103.87 = 65,788,968.12 : x
  2. Step 2: Convert to fraction form
    117,996,682.20/162,836,103.87 = 65,788,968.12/x
  3. Step 3: Cross multiply
    117,996,682.20x = 162,836,103.87 × 65,788,968.12
  4. Step 4: Simplify right side
    117,996,682.20x = 10,712,819,246,288,438
  5. Step 5: Solve for x
    x = 10,712,819,246,288,438/117,996,682.20
  6. Step 6: Final answer
    x = 90,789,156.50

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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.