Home / 154,086,563.24-212,633,758.40-83,520,658.36

Finding the Fourth Proportional to 154,086,563.24, 212,633,758.40 and 83,520,658.36

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Solution

The fourth proportional to 154,086,563.24, 212,633,758.40 and 83,520,658.36 is: 115,255,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,086,563.24 : 212,633,758.40 = 83,520,658.36 : x
  2. Step 2: Convert to fraction form
    154,086,563.24/212,633,758.40 = 83,520,658.36/x
  3. Step 3: Cross multiply
    154,086,563.24x = 212,633,758.40 × 83,520,658.36
  4. Step 4: Simplify right side
    154,086,563.24x = 17,759,311,491,129,180
  5. Step 5: Solve for x
    x = 17,759,311,491,129,180/154,086,563.24
  6. Step 6: Final answer
    x = 115,255,419.54

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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.