Home / 20,622,793.17-28,459,929.45-11,330,942.77

Finding the Fourth Proportional to 20,622,793.17, 28,459,929.45 and 11,330,942.77

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Solution

The fourth proportional to 20,622,793.17, 28,459,929.45 and 11,330,942.77 is: 15,636,961.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622,793.17 : 28,459,929.45 = 11,330,942.77 : x
  2. Step 2: Convert to fraction form
    20,622,793.17/28,459,929.45 = 11,330,942.77/x
  3. Step 3: Cross multiply
    20,622,793.17x = 28,459,929.45 × 11,330,942.77
  4. Step 4: Simplify right side
    20,622,793.17x = 322,477,831,836,187.56
  5. Step 5: Solve for x
    x = 322,477,831,836,187.56/20,622,793.17
  6. Step 6: Final answer
    x = 15,636,961.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.