Home / 189,273,479.60-283,910,219.40-81,568,103.60

Finding the Fourth Proportional to 189,273,479.60, 283,910,219.40 and 81,568,103.60

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Solution

The fourth proportional to 189,273,479.60, 283,910,219.40 and 81,568,103.60 is: 122,352,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,273,479.60 : 283,910,219.40 = 81,568,103.60 : x
  2. Step 2: Convert to fraction form
    189,273,479.60/283,910,219.40 = 81,568,103.60/x
  3. Step 3: Cross multiply
    189,273,479.60x = 283,910,219.40 × 81,568,103.60
  4. Step 4: Simplify right side
    189,273,479.60x = 23,158,018,189,117,928
  5. Step 5: Solve for x
    x = 23,158,018,189,117,928/189,273,479.60
  6. Step 6: Final answer
    x = 122,352,155.40

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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.