Home / 290,027,105.40-435,040,658.10-167,415,137.40

Finding the Fourth Proportional to 290,027,105.40, 435,040,658.10 and 167,415,137.40

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Solution

The fourth proportional to 290,027,105.40, 435,040,658.10 and 167,415,137.40 is: 251,122,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,027,105.40 : 435,040,658.10 = 167,415,137.40 : x
  2. Step 2: Convert to fraction form
    290,027,105.40/435,040,658.10 = 167,415,137.40/x
  3. Step 3: Cross multiply
    290,027,105.40x = 435,040,658.10 × 167,415,137.40
  4. Step 4: Simplify right side
    290,027,105.40x = 72,832,391,550,397,936
  5. Step 5: Solve for x
    x = 72,832,391,550,397,936/290,027,105.40
  6. Step 6: Final answer
    x = 251,122,706.10

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1.5x scale

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.