Home / 3,015,211.93-4,160,978.78-1,638,529.61

Finding the Fourth Proportional to 3,015,211.93, 4,160,978.78 and 1,638,529.61

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Solution

The fourth proportional to 3,015,211.93, 4,160,978.78 and 1,638,529.61 is: 2,261,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,211.93 : 4,160,978.78 = 1,638,529.61 : x
  2. Step 2: Convert to fraction form
    3,015,211.93/4,160,978.78 = 1,638,529.61/x
  3. Step 3: Cross multiply
    3,015,211.93x = 4,160,978.78 × 1,638,529.61
  4. Step 4: Simplify right side
    3,015,211.93x = 6,817,886,908,614.13
  5. Step 5: Solve for x
    x = 6,817,886,908,614.13/3,015,211.93
  6. Step 6: Final answer
    x = 2,261,163.42

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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.