Home / 12,591,548.57-18,886,237.90-7,666,303.61

Finding the Fourth Proportional to 12,591,548.57, 18,886,237.90 and 7,666,303.61

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Solution

The fourth proportional to 12,591,548.57, 18,886,237.90 and 7,666,303.61 is: 11,498,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,548.57 : 18,886,237.90 = 7,666,303.61 : x
  2. Step 2: Convert to fraction form
    12,591,548.57/18,886,237.90 = 7,666,303.61/x
  3. Step 3: Cross multiply
    12,591,548.57x = 18,886,237.90 × 7,666,303.61
  4. Step 4: Simplify right side
    12,591,548.57x = 144,787,633,820,138.66
  5. Step 5: Solve for x
    x = 144,787,633,820,138.66/12,591,548.57
  6. Step 6: Final answer
    x = 11,498,794.85

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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.