Home / 5,640,138-7,783,400.16-3,225,690

Finding the Fourth Proportional to 5,640,138, 7,783,400.16 and 3,225,690

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Solution

The fourth proportional to 5,640,138, 7,783,400.16 and 3,225,690 is: 4,451,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640,138 : 7,783,400.16 = 3,225,690 : x
  2. Step 2: Convert to fraction form
    5,640,138/7,783,400.16 = 3,225,690/x
  3. Step 3: Cross multiply
    5,640,138x = 7,783,400.16 × 3,225,690
  4. Step 4: Simplify right side
    5,640,138x = 25,106,836,062,110.40
  5. Step 5: Solve for x
    x = 25,106,836,062,110.40/5,640,138
  6. Step 6: Final answer
    x = 4,451,457.76

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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.