Home / 120,251,796.30-180,377,694.45-103,033,107.90

Finding the Fourth Proportional to 120,251,796.30, 180,377,694.45 and 103,033,107.90

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Solution

The fourth proportional to 120,251,796.30, 180,377,694.45 and 103,033,107.90 is: 154,549,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,251,796.30 : 180,377,694.45 = 103,033,107.90 : x
  2. Step 2: Convert to fraction form
    120,251,796.30/180,377,694.45 = 103,033,107.90/x
  3. Step 3: Cross multiply
    120,251,796.30x = 180,377,694.45 × 103,033,107.90
  4. Step 4: Simplify right side
    120,251,796.30x = 18,584,874,455,020,080
  5. Step 5: Solve for x
    x = 18,584,874,455,020,080/120,251,796.30
  6. Step 6: Final answer
    x = 154,549,661.85

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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.