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Finding the Fourth Proportional to 196,992,945.70, 295,489,418.55 and 115,363,608.10

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Solution

The fourth proportional to 196,992,945.70, 295,489,418.55 and 115,363,608.10 is: 173,045,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,992,945.70 : 295,489,418.55 = 115,363,608.10 : x
  2. Step 2: Convert to fraction form
    196,992,945.70/295,489,418.55 = 115,363,608.10/x
  3. Step 3: Cross multiply
    196,992,945.70x = 295,489,418.55 × 115,363,608.10
  4. Step 4: Simplify right side
    196,992,945.70x = 34,088,725,479,299,068
  5. Step 5: Solve for x
    x = 34,088,725,479,299,068/196,992,945.70
  6. Step 6: Final answer
    x = 173,045,412.15

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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.