Home / 136,481,126.80-204,721,690.20-68,314,961.20

Finding the Fourth Proportional to 136,481,126.80, 204,721,690.20 and 68,314,961.20

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Solution

The fourth proportional to 136,481,126.80, 204,721,690.20 and 68,314,961.20 is: 102,472,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,481,126.80 : 204,721,690.20 = 68,314,961.20 : x
  2. Step 2: Convert to fraction form
    136,481,126.80/204,721,690.20 = 68,314,961.20/x
  3. Step 3: Cross multiply
    136,481,126.80x = 204,721,690.20 × 68,314,961.20
  4. Step 4: Simplify right side
    136,481,126.80x = 13,985,554,322,811,420
  5. Step 5: Solve for x
    x = 13,985,554,322,811,420/136,481,126.80
  6. Step 6: Final answer
    x = 102,472,441.80

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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.