Home / 20,728,008.60-31,095,998.10-7,947,516.60

Finding the Fourth Proportional to 20,728,008.60, 31,095,998.10 and 7,947,516.60

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Solution

The fourth proportional to 20,728,008.60, 31,095,998.10 and 7,947,516.60 is: 11,922,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,008.60 : 31,095,998.10 = 7,947,516.60 : x
  2. Step 2: Convert to fraction form
    20,728,008.60/31,095,998.10 = 7,947,516.60/x
  3. Step 3: Cross multiply
    20,728,008.60x = 31,095,998.10 × 7,947,516.60
  4. Step 4: Simplify right side
    20,728,008.60x = 247,135,961,093,318.47
  5. Step 5: Solve for x
    x = 247,135,961,093,318.47/20,728,008.60
  6. Step 6: Final answer
    x = 11,922,802.90

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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.