Home / 3,430,538.87-5,144,152.96-1,991,584.52

Finding the Fourth Proportional to 3,430,538.87, 5,144,152.96 and 1,991,584.52

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Solution

The fourth proportional to 3,430,538.87, 5,144,152.96 and 1,991,584.52 is: 2,986,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430,538.87 : 5,144,152.96 = 1,991,584.52 : x
  2. Step 2: Convert to fraction form
    3,430,538.87/5,144,152.96 = 1,991,584.52/x
  3. Step 3: Cross multiply
    3,430,538.87x = 5,144,152.96 × 1,991,584.52
  4. Step 4: Simplify right side
    3,430,538.87x = 10,245,015,399,746.98
  5. Step 5: Solve for x
    x = 10,245,015,399,746.98/3,430,538.87
  6. Step 6: Final answer
    x = 2,986,415.77

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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.