Home / 101,221,979.63-139,686,297.84-54,812,233.55

Finding the Fourth Proportional to 101,221,979.63, 139,686,297.84 and 54,812,233.55

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Solution

The fourth proportional to 101,221,979.63, 139,686,297.84 and 54,812,233.55 is: 75,640,863.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,221,979.63 : 139,686,297.84 = 54,812,233.55 : x
  2. Step 2: Convert to fraction form
    101,221,979.63/139,686,297.84 = 54,812,233.55/x
  3. Step 3: Cross multiply
    101,221,979.63x = 139,686,297.84 × 54,812,233.55
  4. Step 4: Simplify right side
    101,221,979.63x = 7,656,517,980,728,755
  5. Step 5: Solve for x
    x = 7,656,517,980,728,755/101,221,979.63
  6. Step 6: Final answer
    x = 75,640,863.86

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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.