Home / 613,518,453.36-920,296,575.72-268,294,379.76

Finding the Fourth Proportional to 613,518,453.36, 920,296,575.72 and 268,294,379.76

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Solution

The fourth proportional to 613,518,453.36, 920,296,575.72 and 268,294,379.76 is: 402,449,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,518,453.36 : 920,296,575.72 = 268,294,379.76 : x
  2. Step 2: Convert to fraction form
    613,518,453.36/920,296,575.72 = 268,294,379.76/x
  3. Step 3: Cross multiply
    613,518,453.36x = 920,296,575.72 × 268,294,379.76
  4. Step 4: Simplify right side
    613,518,453.36x = 246,910,398,978,049,280
  5. Step 5: Solve for x
    x = 246,910,398,978,049,280/613,518,453.36
  6. Step 6: Final answer
    x = 402,449,832.81

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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.