Home / 12,128,925.22-16,737,477.32-6,622,198.64

Finding the Fourth Proportional to 12,128,925.22, 16,737,477.32 and 6,622,198.64

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Solution

The fourth proportional to 12,128,925.22, 16,737,477.32 and 6,622,198.64 is: 9,138,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,925.22 : 16,737,477.32 = 6,622,198.64 : x
  2. Step 2: Convert to fraction form
    12,128,925.22/16,737,477.32 = 6,622,198.64/x
  3. Step 3: Cross multiply
    12,128,925.22x = 16,737,477.32 × 6,622,198.64
  4. Step 4: Simplify right side
    12,128,925.22x = 110,838,899,541,168.48
  5. Step 5: Solve for x
    x = 110,838,899,541,168.48/12,128,925.22
  6. Step 6: Final answer
    x = 9,138,394.17

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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.