Home / 2,155,251.20-3,239,097.60-2,117,926.40

Finding the Fourth Proportional to 2,155,251.20, 3,239,097.60 and 2,117,926.40

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Solution

The fourth proportional to 2,155,251.20, 3,239,097.60 and 2,117,926.40 is: 3,183,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,251.20 : 3,239,097.60 = 2,117,926.40 : x
  2. Step 2: Convert to fraction form
    2,155,251.20/3,239,097.60 = 2,117,926.40/x
  3. Step 3: Cross multiply
    2,155,251.20x = 3,239,097.60 × 2,117,926.40
  4. Step 4: Simplify right side
    2,155,251.20x = 6,860,170,319,216.64
  5. Step 5: Solve for x
    x = 6,860,170,319,216.64/2,155,251.20
  6. Step 6: Final answer
    x = 3,183,002.67

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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.