Home / 7,180,020.45-9,908,414.37-3,916,834.20

Finding the Fourth Proportional to 7,180,020.45, 9,908,414.37 and 3,916,834.20

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Solution

The fourth proportional to 7,180,020.45, 9,908,414.37 and 3,916,834.20 is: 5,405,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180,020.45 : 9,908,414.37 = 3,916,834.20 : x
  2. Step 2: Convert to fraction form
    7,180,020.45/9,908,414.37 = 3,916,834.20/x
  3. Step 3: Cross multiply
    7,180,020.45x = 9,908,414.37 × 3,916,834.20
  4. Step 4: Simplify right side
    7,180,020.45x = 38,809,616,272,187.45
  5. Step 5: Solve for x
    x = 38,809,616,272,187.45/7,180,020.45
  6. Step 6: Final answer
    x = 5,405,223.64

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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.