Home / 8,140,688.40-12,211,032.60-5,111,474.70

Finding the Fourth Proportional to 8,140,688.40, 12,211,032.60 and 5,111,474.70

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Solution

The fourth proportional to 8,140,688.40, 12,211,032.60 and 5,111,474.70 is: 7,667,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140,688.40 : 12,211,032.60 = 5,111,474.70 : x
  2. Step 2: Convert to fraction form
    8,140,688.40/12,211,032.60 = 5,111,474.70/x
  3. Step 3: Cross multiply
    8,140,688.40x = 12,211,032.60 × 5,111,474.70
  4. Step 4: Simplify right side
    8,140,688.40x = 62,416,384,195,775.22
  5. Step 5: Solve for x
    x = 62,416,384,195,775.22/8,140,688.40
  6. Step 6: Final answer
    x = 7,667,212.05

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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.