Home / 208,654,360.80-312,981,541.20-131,056,101.60

Finding the Fourth Proportional to 208,654,360.80, 312,981,541.20 and 131,056,101.60

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Solution

The fourth proportional to 208,654,360.80, 312,981,541.20 and 131,056,101.60 is: 196,584,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,654,360.80 : 312,981,541.20 = 131,056,101.60 : x
  2. Step 2: Convert to fraction form
    208,654,360.80/312,981,541.20 = 131,056,101.60/x
  3. Step 3: Cross multiply
    208,654,360.80x = 312,981,541.20 × 131,056,101.60
  4. Step 4: Simplify right side
    208,654,360.80x = 41,018,140,662,431,784
  5. Step 5: Solve for x
    x = 41,018,140,662,431,784/208,654,360.80
  6. Step 6: Final answer
    x = 196,584,152.40

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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.