Home / 290,027,078.40-435,040,617.60-167,415,110.40

Finding the Fourth Proportional to 290,027,078.40, 435,040,617.60 and 167,415,110.40

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Solution

The fourth proportional to 290,027,078.40, 435,040,617.60 and 167,415,110.40 is: 251,122,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,027,078.40 : 435,040,617.60 = 167,415,110.40 : x
  2. Step 2: Convert to fraction form
    290,027,078.40/435,040,617.60 = 167,415,110.40/x
  3. Step 3: Cross multiply
    290,027,078.40x = 435,040,617.60 × 167,415,110.40
  4. Step 4: Simplify right side
    290,027,078.40x = 72,832,373,023,988,192
  5. Step 5: Solve for x
    x = 72,832,373,023,988,192/290,027,078.40
  6. Step 6: Final answer
    x = 251,122,665.60

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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.