Home / 133,272,153.12-199,624,736.16-78,625,846.56

Finding the Fourth Proportional to 133,272,153.12, 199,624,736.16 and 78,625,846.56

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Solution

The fourth proportional to 133,272,153.12, 199,624,736.16 and 78,625,846.56 is: 117,771,518.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,272,153.12 : 199,624,736.16 = 78,625,846.56 : x
  2. Step 2: Convert to fraction form
    133,272,153.12/199,624,736.16 = 78,625,846.56/x
  3. Step 3: Cross multiply
    133,272,153.12x = 199,624,736.16 × 78,625,846.56
  4. Step 4: Simplify right side
    133,272,153.12x = 15,695,663,874,896,644
  5. Step 5: Solve for x
    x = 15,695,663,874,896,644/133,272,153.12
  6. Step 6: Final answer
    x = 117,771,518.71

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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.