Home / 12,788,644.93-17,656,150.86-8,322,455.77

Finding the Fourth Proportional to 12,788,644.93, 17,656,150.86 and 8,322,455.77

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Solution

The fourth proportional to 12,788,644.93, 17,656,150.86 and 8,322,455.77 is: 11,490,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,644.93 : 17,656,150.86 = 8,322,455.77 : x
  2. Step 2: Convert to fraction form
    12,788,644.93/17,656,150.86 = 8,322,455.77/x
  3. Step 3: Cross multiply
    12,788,644.93x = 17,656,150.86 × 8,322,455.77
  4. Step 4: Simplify right side
    12,788,644.93x = 146,942,534,470,904.44
  5. Step 5: Solve for x
    x = 146,942,534,470,904.44/12,788,644.93
  6. Step 6: Final answer
    x = 11,490,078.53

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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.