Home / 208,654,230.80-312,981,346.20-131,055,971.60

Finding the Fourth Proportional to 208,654,230.80, 312,981,346.20 and 131,055,971.60

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Solution

The fourth proportional to 208,654,230.80, 312,981,346.20 and 131,055,971.60 is: 196,583,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,654,230.80 : 312,981,346.20 = 131,055,971.60 : x
  2. Step 2: Convert to fraction form
    208,654,230.80/312,981,346.20 = 131,055,971.60/x
  3. Step 3: Cross multiply
    208,654,230.80x = 312,981,346.20 × 131,055,971.60
  4. Step 4: Simplify right side
    208,654,230.80x = 41,018,074,418,916,968
  5. Step 5: Solve for x
    x = 41,018,074,418,916,968/208,654,230.80
  6. Step 6: Final answer
    x = 196,583,957.40

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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.