Home / 67,578,138.36-101,376,917.73-20,895,261.96

Finding the Fourth Proportional to 67,578,138.36, 101,376,917.73 and 20,895,261.96

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Solution

The fourth proportional to 67,578,138.36, 101,376,917.73 and 20,895,261.96 is: 31,345,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,578,138.36 : 101,376,917.73 = 20,895,261.96 : x
  2. Step 2: Convert to fraction form
    67,578,138.36/101,376,917.73 = 20,895,261.96/x
  3. Step 3: Cross multiply
    67,578,138.36x = 101,376,917.73 × 20,895,261.96
  4. Step 4: Simplify right side
    67,578,138.36x = 2,118,297,252,665,718.75
  5. Step 5: Solve for x
    x = 2,118,297,252,665,718.75/67,578,138.36
  6. Step 6: Final answer
    x = 31,345,895.35

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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.