Home / 7,202,856.64-9,940,178.85-3,939,671.26

Finding the Fourth Proportional to 7,202,856.64, 9,940,178.85 and 3,939,671.26

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Solution

The fourth proportional to 7,202,856.64, 9,940,178.85 and 3,939,671.26 is: 5,436,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202,856.64 : 9,940,178.85 = 3,939,671.26 : x
  2. Step 2: Convert to fraction form
    7,202,856.64/9,940,178.85 = 3,939,671.26/x
  3. Step 3: Cross multiply
    7,202,856.64x = 9,940,178.85 × 3,939,671.26
  4. Step 4: Simplify right side
    7,202,856.64x = 39,161,036,934,604.84
  5. Step 5: Solve for x
    x = 39,161,036,934,604.84/7,202,856.64
  6. Step 6: Final answer
    x = 5,436,875.80

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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.