Home / 8,481,947.75-11,709,153.39-5,221,557.21

Finding the Fourth Proportional to 8,481,947.75, 11,709,153.39 and 5,221,557.21

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Solution

The fourth proportional to 8,481,947.75, 11,709,153.39 and 5,221,557.21 is: 7,208,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481,947.75 : 11,709,153.39 = 5,221,557.21 : x
  2. Step 2: Convert to fraction form
    8,481,947.75/11,709,153.39 = 5,221,557.21/x
  3. Step 3: Cross multiply
    8,481,947.75x = 11,709,153.39 × 5,221,557.21
  4. Step 4: Simplify right side
    8,481,947.75x = 61,140,014,306,550.45
  5. Step 5: Solve for x
    x = 61,140,014,306,550.45/8,481,947.75
  6. Step 6: Final answer
    x = 7,208,251.70

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1.5x scale

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.