Home / 120,784,086.33-166,686,758.10-68,577,979.70

Finding the Fourth Proportional to 120,784,086.33, 166,686,758.10 and 68,577,979.70

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Solution

The fourth proportional to 120,784,086.33, 166,686,758.10 and 68,577,979.70 is: 94,640,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,784,086.33 : 166,686,758.10 = 68,577,979.70 : x
  2. Step 2: Convert to fraction form
    120,784,086.33/166,686,758.10 = 68,577,979.70/x
  3. Step 3: Cross multiply
    120,784,086.33x = 166,686,758.10 × 68,577,979.70
  4. Step 4: Simplify right side
    120,784,086.33x = 11,431,041,112,407,176
  5. Step 5: Solve for x
    x = 11,431,041,112,407,176/120,784,086.33
  6. Step 6: Final answer
    x = 94,640,291.28

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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.