Home / 101,498,754.57-139,529,796.05-87,318,193.11

Finding the Fourth Proportional to 101,498,754.57, 139,529,796.05 and 87,318,193.11

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Solution

The fourth proportional to 101,498,754.57, 139,529,796.05 and 87,318,193.11 is: 120,035,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,498,754.57 : 139,529,796.05 = 87,318,193.11 : x
  2. Step 2: Convert to fraction form
    101,498,754.57/139,529,796.05 = 87,318,193.11/x
  3. Step 3: Cross multiply
    101,498,754.57x = 139,529,796.05 × 87,318,193.11
  4. Step 4: Simplify right side
    101,498,754.57x = 12,183,489,676,092,816
  5. Step 5: Solve for x
    x = 12,183,489,676,092,816/101,498,754.57
  6. Step 6: Final answer
    x = 120,035,853.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.