Home / 391,603,498.85-587,472,169.40-161,446,768.13

Finding the Fourth Proportional to 391,603,498.85, 587,472,169.40 and 161,446,768.13

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Solution

The fourth proportional to 391,603,498.85, 587,472,169.40 and 161,446,768.13 is: 242,197,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,603,498.85 : 587,472,169.40 = 161,446,768.13 : x
  2. Step 2: Convert to fraction form
    391,603,498.85/587,472,169.40 = 161,446,768.13/x
  3. Step 3: Cross multiply
    391,603,498.85x = 587,472,169.40 × 161,446,768.13
  4. Step 4: Simplify right side
    391,603,498.85x = 94,845,483,115,949,872
  5. Step 5: Solve for x
    x = 94,845,483,115,949,872/391,603,498.85
  6. Step 6: Final answer
    x = 242,197,741.83

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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.