Home / 168,138,764.72-252,218,787.24-71,076,378.32

Finding the Fourth Proportional to 168,138,764.72, 252,218,787.24 and 71,076,378.32

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Solution

The fourth proportional to 168,138,764.72, 252,218,787.24 and 71,076,378.32 is: 106,619,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,138,764.72 : 252,218,787.24 = 71,076,378.32 : x
  2. Step 2: Convert to fraction form
    168,138,764.72/252,218,787.24 = 71,076,378.32/x
  3. Step 3: Cross multiply
    168,138,764.72x = 252,218,787.24 × 71,076,378.32
  4. Step 4: Simplify right side
    168,138,764.72x = 17,926,797,941,281,828
  5. Step 5: Solve for x
    x = 17,926,797,941,281,828/168,138,764.72
  6. Step 6: Final answer
    x = 106,619,065.34

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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.