Home / 12,282,918.80-16,944,945.96-7,123,289.36

Finding the Fourth Proportional to 12,282,918.80, 16,944,945.96 and 7,123,289.36

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Solution

The fourth proportional to 12,282,918.80, 16,944,945.96 and 7,123,289.36 is: 9,826,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282,918.80 : 16,944,945.96 = 7,123,289.36 : x
  2. Step 2: Convert to fraction form
    12,282,918.80/16,944,945.96 = 7,123,289.36/x
  3. Step 3: Cross multiply
    12,282,918.80x = 16,944,945.96 × 7,123,289.36
  4. Step 4: Simplify right side
    12,282,918.80x = 120,703,753,262,643
  5. Step 5: Solve for x
    x = 120,703,753,262,643/12,282,918.80
  6. Step 6: Final answer
    x = 9,826,960.12

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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.