Home / 209,997,719.48-289,753,588.13-120,672,410.29

Finding the Fourth Proportional to 209,997,719.48, 289,753,588.13 and 120,672,410.29

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Solution

The fourth proportional to 209,997,719.48, 289,753,588.13 and 120,672,410.29 is: 166,503,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,997,719.48 : 289,753,588.13 = 120,672,410.29 : x
  2. Step 2: Convert to fraction form
    209,997,719.48/289,753,588.13 = 120,672,410.29/x
  3. Step 3: Cross multiply
    209,997,719.48x = 289,753,588.13 × 120,672,410.29
  4. Step 4: Simplify right side
    209,997,719.48x = 34,965,263,868,374,264
  5. Step 5: Solve for x
    x = 34,965,263,868,374,264/209,997,719.48
  6. Step 6: Final answer
    x = 166,503,064.68

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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.