Home / 7,981,752.72-11,928,890.49-5,827,314.76

Finding the Fourth Proportional to 7,981,752.72, 11,928,890.49 and 5,827,314.76

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Solution

The fourth proportional to 7,981,752.72, 11,928,890.49 and 5,827,314.76 is: 8,709,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,752.72 : 11,928,890.49 = 5,827,314.76 : x
  2. Step 2: Convert to fraction form
    7,981,752.72/11,928,890.49 = 5,827,314.76/x
  3. Step 3: Cross multiply
    7,981,752.72x = 11,928,890.49 × 5,827,314.76
  4. Step 4: Simplify right side
    7,981,752.72x = 69,513,399,571,125.98
  5. Step 5: Solve for x
    x = 69,513,399,571,125.98/7,981,752.72
  6. Step 6: Final answer
    x = 8,709,039.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.