Home / 12,848,979.36-19,247,772.06-7,728,582.72

Finding the Fourth Proportional to 12,848,979.36, 19,247,772.06 and 7,728,582.72

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Solution

The fourth proportional to 12,848,979.36, 19,247,772.06 and 7,728,582.72 is: 11,577,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848,979.36 : 19,247,772.06 = 7,728,582.72 : x
  2. Step 2: Convert to fraction form
    12,848,979.36/19,247,772.06 = 7,728,582.72/x
  3. Step 3: Cross multiply
    12,848,979.36x = 19,247,772.06 × 7,728,582.72
  4. Step 4: Simplify right side
    12,848,979.36x = 148,757,998,541,414.78
  5. Step 5: Solve for x
    x = 148,757,998,541,414.78/12,848,979.36
  6. Step 6: Final answer
    x = 11,577,417.50

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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.