Home / 208,654,223.80-312,981,335.70-131,055,964.60

Finding the Fourth Proportional to 208,654,223.80, 312,981,335.70 and 131,055,964.60

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Solution

The fourth proportional to 208,654,223.80, 312,981,335.70 and 131,055,964.60 is: 196,583,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,654,223.80 : 312,981,335.70 = 131,055,964.60 : x
  2. Step 2: Convert to fraction form
    208,654,223.80/312,981,335.70 = 131,055,964.60/x
  3. Step 3: Cross multiply
    208,654,223.80x = 312,981,335.70 × 131,055,964.60
  4. Step 4: Simplify right side
    208,654,223.80x = 41,018,070,851,959,912
  5. Step 5: Solve for x
    x = 41,018,070,851,959,912/208,654,223.80
  6. Step 6: Final answer
    x = 196,583,946.90

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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.