Home / 131,906,007.20-197,859,010.80-91,091,338.40

Finding the Fourth Proportional to 131,906,007.20, 197,859,010.80 and 91,091,338.40

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Solution

The fourth proportional to 131,906,007.20, 197,859,010.80 and 91,091,338.40 is: 136,637,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,906,007.20 : 197,859,010.80 = 91,091,338.40 : x
  2. Step 2: Convert to fraction form
    131,906,007.20/197,859,010.80 = 91,091,338.40/x
  3. Step 3: Cross multiply
    131,906,007.20x = 197,859,010.80 × 91,091,338.40
  4. Step 4: Simplify right side
    131,906,007.20x = 18,023,242,108,272,056
  5. Step 5: Solve for x
    x = 18,023,242,108,272,056/131,906,007.20
  6. Step 6: Final answer
    x = 136,637,007.60

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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.