Home / 78,028,992.30-117,043,488.45-73,246,023.30

Finding the Fourth Proportional to 78,028,992.30, 117,043,488.45 and 73,246,023.30

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Solution

The fourth proportional to 78,028,992.30, 117,043,488.45 and 73,246,023.30 is: 109,869,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,028,992.30 : 117,043,488.45 = 73,246,023.30 : x
  2. Step 2: Convert to fraction form
    78,028,992.30/117,043,488.45 = 73,246,023.30/x
  3. Step 3: Cross multiply
    78,028,992.30x = 117,043,488.45 × 73,246,023.30
  4. Step 4: Simplify right side
    78,028,992.30x = 8,572,970,082,121,981
  5. Step 5: Solve for x
    x = 8,572,970,082,121,981/78,028,992.30
  6. Step 6: Final answer
    x = 109,869,034.95

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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.