Home / 20,790,025.10-31,185,037.65-8,655,455.60

Finding the Fourth Proportional to 20,790,025.10, 31,185,037.65 and 8,655,455.60

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Solution

The fourth proportional to 20,790,025.10, 31,185,037.65 and 8,655,455.60 is: 12,983,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,025.10 : 31,185,037.65 = 8,655,455.60 : x
  2. Step 2: Convert to fraction form
    20,790,025.10/31,185,037.65 = 8,655,455.60/x
  3. Step 3: Cross multiply
    20,790,025.10x = 31,185,037.65 × 8,655,455.60
  4. Step 4: Simplify right side
    20,790,025.10x = 269,920,708,763,903.31
  5. Step 5: Solve for x
    x = 269,920,708,763,903.31/20,790,025.10
  6. Step 6: Final answer
    x = 12,983,183.40

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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.