Home / 31,477,939.46-43,439,728.78-18,254,956.31

Finding the Fourth Proportional to 31,477,939.46, 43,439,728.78 and 18,254,956.31

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Solution

The fourth proportional to 31,477,939.46, 43,439,728.78 and 18,254,956.31 is: 25,191,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477,939.46 : 43,439,728.78 = 18,254,956.31 : x
  2. Step 2: Convert to fraction form
    31,477,939.46/43,439,728.78 = 18,254,956.31/x
  3. Step 3: Cross multiply
    31,477,939.46x = 43,439,728.78 × 18,254,956.31
  4. Step 4: Simplify right side
    31,477,939.46x = 792,990,350,734,313.62
  5. Step 5: Solve for x
    x = 792,990,350,734,313.62/31,477,939.46
  6. Step 6: Final answer
    x = 25,191,939.63

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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.