Home / 20,790,018.10-31,185,027.15-8,655,448.60

Finding the Fourth Proportional to 20,790,018.10, 31,185,027.15 and 8,655,448.60

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Solution

The fourth proportional to 20,790,018.10, 31,185,027.15 and 8,655,448.60 is: 12,983,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,018.10 : 31,185,027.15 = 8,655,448.60 : x
  2. Step 2: Convert to fraction form
    20,790,018.10/31,185,027.15 = 8,655,448.60/x
  3. Step 3: Cross multiply
    20,790,018.10x = 31,185,027.15 × 8,655,448.60
  4. Step 4: Simplify right side
    20,790,018.10x = 269,920,399,586,429.47
  5. Step 5: Solve for x
    x = 269,920,399,586,429.47/20,790,018.10
  6. Step 6: Final answer
    x = 12,983,172.90

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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.