Home / 13,915,991.20-19,204,206.96-7,804,288.48

Finding the Fourth Proportional to 13,915,991.20, 19,204,206.96 and 7,804,288.48

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Solution

The fourth proportional to 13,915,991.20, 19,204,206.96 and 7,804,288.48 is: 10,769,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915,991.20 : 19,204,206.96 = 7,804,288.48 : x
  2. Step 2: Convert to fraction form
    13,915,991.20/19,204,206.96 = 7,804,288.48/x
  3. Step 3: Cross multiply
    13,915,991.20x = 19,204,206.96 × 7,804,288.48
  4. Step 4: Simplify right side
    13,915,991.20x = 149,875,171,145,463.84
  5. Step 5: Solve for x
    x = 149,875,171,145,463.84/13,915,991.20
  6. Step 6: Final answer
    x = 10,769,996.11

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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.