Home / 120,298,328.18-165,983,236.57-68,087,363.85

Finding the Fourth Proportional to 120,298,328.18, 165,983,236.57 and 68,087,363.85

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Solution

The fourth proportional to 120,298,328.18, 165,983,236.57 and 68,087,363.85 is: 93,944,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,298,328.18 : 165,983,236.57 = 68,087,363.85 : x
  2. Step 2: Convert to fraction form
    120,298,328.18/165,983,236.57 = 68,087,363.85/x
  3. Step 3: Cross multiply
    120,298,328.18x = 165,983,236.57 × 68,087,363.85
  4. Step 4: Simplify right side
    120,298,328.18x = 11,301,361,021,342,214
  5. Step 5: Solve for x
    x = 11,301,361,021,342,214/120,298,328.18
  6. Step 6: Final answer
    x = 93,944,456.19

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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.