Home / 120,216,961.14-165,899,459.25-68,004,879.54

Finding the Fourth Proportional to 120,216,961.14, 165,899,459.25 and 68,004,879.54

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Solution

The fourth proportional to 120,216,961.14, 165,899,459.25 and 68,004,879.54 is: 93,846,763.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,216,961.14 : 165,899,459.25 = 68,004,879.54 : x
  2. Step 2: Convert to fraction form
    120,216,961.14/165,899,459.25 = 68,004,879.54/x
  3. Step 3: Cross multiply
    120,216,961.14x = 165,899,459.25 × 68,004,879.54
  4. Step 4: Simplify right side
    120,216,961.14x = 11,281,972,742,047,390
  5. Step 5: Solve for x
    x = 11,281,972,742,047,390/120,216,961.14
  6. Step 6: Final answer
    x = 93,846,763.68

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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.