Home / 8,211,856.18-12,319,544.80-2,455,040.38

Finding the Fourth Proportional to 8,211,856.18, 12,319,544.80 and 2,455,040.38

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Solution

The fourth proportional to 8,211,856.18, 12,319,544.80 and 2,455,040.38 is: 3,683,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211,856.18 : 12,319,544.80 = 2,455,040.38 : x
  2. Step 2: Convert to fraction form
    8,211,856.18/12,319,544.80 = 2,455,040.38/x
  3. Step 3: Cross multiply
    8,211,856.18x = 12,319,544.80 × 2,455,040.38
  4. Step 4: Simplify right side
    8,211,856.18x = 30,244,979,947,219.02
  5. Step 5: Solve for x
    x = 30,244,979,947,219.02/8,211,856.18
  6. Step 6: Final answer
    x = 3,683,086.90

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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.