Home / 5,322,491.11-7,983,735.84-1,278,978.93

Finding the Fourth Proportional to 5,322,491.11, 7,983,735.84 and 1,278,978.93

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Solution

The fourth proportional to 5,322,491.11, 7,983,735.84 and 1,278,978.93 is: 1,918,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,322,491.11 : 7,983,735.84 = 1,278,978.93 : x
  2. Step 2: Convert to fraction form
    5,322,491.11/7,983,735.84 = 1,278,978.93/x
  3. Step 3: Cross multiply
    5,322,491.11x = 7,983,735.84 × 1,278,978.93
  4. Step 4: Simplify right side
    5,322,491.11x = 10,211,029,913,625.40
  5. Step 5: Solve for x
    x = 10,211,029,913,625.40/5,322,491.11
  6. Step 6: Final answer
    x = 1,918,468.20

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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.