Home / 5,390,328.56-7,438,614.53-2,942,939.57

Finding the Fourth Proportional to 5,390,328.56, 7,438,614.53 and 2,942,939.57

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Solution

The fourth proportional to 5,390,328.56, 7,438,614.53 and 2,942,939.57 is: 4,061,235.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,328.56 : 7,438,614.53 = 2,942,939.57 : x
  2. Step 2: Convert to fraction form
    5,390,328.56/7,438,614.53 = 2,942,939.57/x
  3. Step 3: Cross multiply
    5,390,328.56x = 7,438,614.53 × 2,942,939.57
  4. Step 4: Simplify right side
    5,390,328.56x = 21,891,392,994,406.18
  5. Step 5: Solve for x
    x = 21,891,392,994,406.18/5,390,328.56
  6. Step 6: Final answer
    x = 4,061,235.37

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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.