Home / 3,019,921.20-4,167,438.53-1,643,218.47

Finding the Fourth Proportional to 3,019,921.20, 4,167,438.53 and 1,643,218.47

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Solution

The fourth proportional to 3,019,921.20, 4,167,438.53 and 1,643,218.47 is: 2,267,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019,921.20 : 4,167,438.53 = 1,643,218.47 : x
  2. Step 2: Convert to fraction form
    3,019,921.20/4,167,438.53 = 1,643,218.47/x
  3. Step 3: Cross multiply
    3,019,921.20x = 4,167,438.53 × 1,643,218.47
  4. Step 4: Simplify right side
    3,019,921.20x = 6,848,011,956,869.56
  5. Step 5: Solve for x
    x = 6,848,011,956,869.56/3,019,921.20
  6. Step 6: Final answer
    x = 2,267,612.80

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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.