Home / 131,328,127.20-196,992,190.80-54,625,663.20

Finding the Fourth Proportional to 131,328,127.20, 196,992,190.80 and 54,625,663.20

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Solution

The fourth proportional to 131,328,127.20, 196,992,190.80 and 54,625,663.20 is: 81,938,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328,127.20 : 196,992,190.80 = 54,625,663.20 : x
  2. Step 2: Convert to fraction form
    131,328,127.20/196,992,190.80 = 54,625,663.20/x
  3. Step 3: Cross multiply
    131,328,127.20x = 196,992,190.80 × 54,625,663.20
  4. Step 4: Simplify right side
    131,328,127.20x = 10,760,829,067,670,940
  5. Step 5: Solve for x
    x = 10,760,829,067,670,940/131,328,127.20
  6. Step 6: Final answer
    x = 81,938,494.80

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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.