Home / 131,867,999.20-197,801,998.80-91,053,330.40

Finding the Fourth Proportional to 131,867,999.20, 197,801,998.80 and 91,053,330.40

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Solution

The fourth proportional to 131,867,999.20, 197,801,998.80 and 91,053,330.40 is: 136,579,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,867,999.20 : 197,801,998.80 = 91,053,330.40 : x
  2. Step 2: Convert to fraction form
    131,867,999.20/197,801,998.80 = 91,053,330.40/x
  3. Step 3: Cross multiply
    131,867,999.20x = 197,801,998.80 × 91,053,330.40
  4. Step 4: Simplify right side
    131,867,999.20x = 18,010,530,750,516,806
  5. Step 5: Solve for x
    x = 18,010,530,750,516,806/131,867,999.20
  6. Step 6: Final answer
    x = 136,579,995.60

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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.