Home / 101,642,123.34-152,469,820.53-74,429,855.82

Finding the Fourth Proportional to 101,642,123.34, 152,469,820.53 and 74,429,855.82

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Solution

The fourth proportional to 101,642,123.34, 152,469,820.53 and 74,429,855.82 is: 111,649,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,642,123.34 : 152,469,820.53 = 74,429,855.82 : x
  2. Step 2: Convert to fraction form
    101,642,123.34/152,469,820.53 = 74,429,855.82/x
  3. Step 3: Cross multiply
    101,642,123.34x = 152,469,820.53 × 74,429,855.82
  4. Step 4: Simplify right side
    101,642,123.34x = 11,348,306,758,949,174
  5. Step 5: Solve for x
    x = 11,348,306,758,949,174/101,642,123.34
  6. Step 6: Final answer
    x = 111,649,642.75

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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.