Home / 231,801,663.70-347,702,495.55-139,968,658.90

Finding the Fourth Proportional to 231,801,663.70, 347,702,495.55 and 139,968,658.90

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Solution

The fourth proportional to 231,801,663.70, 347,702,495.55 and 139,968,658.90 is: 209,952,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,801,663.70 : 347,702,495.55 = 139,968,658.90 : x
  2. Step 2: Convert to fraction form
    231,801,663.70/347,702,495.55 = 139,968,658.90/x
  3. Step 3: Cross multiply
    231,801,663.70x = 347,702,495.55 × 139,968,658.90
  4. Step 4: Simplify right side
    231,801,663.70x = 48,667,451,998,316,720
  5. Step 5: Solve for x
    x = 48,667,451,998,316,720/231,801,663.70
  6. Step 6: Final answer
    x = 209,952,988.35

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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.