Home / 172,415,853.40-258,623,780.10-165,613,408.60

Finding the Fourth Proportional to 172,415,853.40, 258,623,780.10 and 165,613,408.60

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Solution

The fourth proportional to 172,415,853.40, 258,623,780.10 and 165,613,408.60 is: 248,420,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,415,853.40 : 258,623,780.10 = 165,613,408.60 : x
  2. Step 2: Convert to fraction form
    172,415,853.40/258,623,780.10 = 165,613,408.60/x
  3. Step 3: Cross multiply
    172,415,853.40x = 258,623,780.10 × 165,613,408.60
  4. Step 4: Simplify right side
    172,415,853.40x = 42,831,565,767,377,848
  5. Step 5: Solve for x
    x = 42,831,565,767,377,848/172,415,853.40
  6. Step 6: Final answer
    x = 248,420,112.90

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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.