Home / 31,100,380.56-42,927,061.34-18,051,843.20

Finding the Fourth Proportional to 31,100,380.56, 42,927,061.34 and 18,051,843.20

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Solution

The fourth proportional to 31,100,380.56, 42,927,061.34 and 18,051,843.20 is: 24,916,498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,100,380.56 : 42,927,061.34 = 18,051,843.20 : x
  2. Step 2: Convert to fraction form
    31,100,380.56/42,927,061.34 = 18,051,843.20/x
  3. Step 3: Cross multiply
    31,100,380.56x = 42,927,061.34 × 18,051,843.20
  4. Step 4: Simplify right side
    31,100,380.56x = 774,912,580,498,909.25
  5. Step 5: Solve for x
    x = 774,912,580,498,909.25/31,100,380.56
  6. Step 6: Final answer
    x = 24,916,498.34

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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.