Home / 458,198,187.78-632,446,741.74-299,452,191.19

Finding the Fourth Proportional to 458,198,187.78, 632,446,741.74 and 299,452,191.19

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Solution

The fourth proportional to 458,198,187.78, 632,446,741.74 and 299,452,191.19 is: 413,331,103.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,198,187.78 : 632,446,741.74 = 299,452,191.19 : x
  2. Step 2: Convert to fraction form
    458,198,187.78/632,446,741.74 = 299,452,191.19/x
  3. Step 3: Cross multiply
    458,198,187.78x = 632,446,741.74 × 299,452,191.19
  4. Step 4: Simplify right side
    458,198,187.78x = 189,387,562,625,019,040
  5. Step 5: Solve for x
    x = 189,387,562,625,019,040/458,198,187.78
  6. Step 6: Final answer
    x = 413,331,103.61

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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.