Home / 156,119,716.62-215,444,997.63-86,509,605.42

Finding the Fourth Proportional to 156,119,716.62, 215,444,997.63 and 86,509,605.42

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Solution

The fourth proportional to 156,119,716.62, 215,444,997.63 and 86,509,605.42 is: 119,383,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,119,716.62 : 215,444,997.63 = 86,509,605.42 : x
  2. Step 2: Convert to fraction form
    156,119,716.62/215,444,997.63 = 86,509,605.42/x
  3. Step 3: Cross multiply
    156,119,716.62x = 215,444,997.63 × 86,509,605.42
  4. Step 4: Simplify right side
    156,119,716.62x = 18,638,061,734,684,136
  5. Step 5: Solve for x
    x = 18,638,061,734,684,136/156,119,716.62
  6. Step 6: Final answer
    x = 119,383,138.39

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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.