Home / 120,783,950.29-166,686,569.72-68,577,843.25

Finding the Fourth Proportional to 120,783,950.29, 166,686,569.72 and 68,577,843.25

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Solution

The fourth proportional to 120,783,950.29, 166,686,569.72 and 68,577,843.25 is: 94,640,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,783,950.29 : 166,686,569.72 = 68,577,843.25 : x
  2. Step 2: Convert to fraction form
    120,783,950.29/166,686,569.72 = 68,577,843.25/x
  3. Step 3: Cross multiply
    120,783,950.29x = 166,686,569.72 × 68,577,843.25
  4. Step 4: Simplify right side
    120,783,950.29x = 11,431,005,450,138,356
  5. Step 5: Solve for x
    x = 11,431,005,450,138,356/120,783,950.29
  6. Step 6: Final answer
    x = 94,640,102.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.