Home / 199,487,769.60-298,727,769.60-130,959,436.80

Finding the Fourth Proportional to 199,487,769.60, 298,727,769.60 and 130,959,436.80

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Solution

The fourth proportional to 199,487,769.60, 298,727,769.60 and 130,959,436.80 is: 196,108,365.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,487,769.60 : 298,727,769.60 = 130,959,436.80 : x
  2. Step 2: Convert to fraction form
    199,487,769.60/298,727,769.60 = 130,959,436.80/x
  3. Step 3: Cross multiply
    199,487,769.60x = 298,727,769.60 × 130,959,436.80
  4. Step 4: Simplify right side
    199,487,769.60x = 39,121,220,463,336,160
  5. Step 5: Solve for x
    x = 39,121,220,463,336,160/199,487,769.60
  6. Step 6: Final answer
    x = 196,108,365.65

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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.