Home / 7,190,235.15-9,922,739.39-3,927,203.81

Finding the Fourth Proportional to 7,190,235.15, 9,922,739.39 and 3,927,203.81

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Solution

The fourth proportional to 7,190,235.15, 9,922,739.39 and 3,927,203.81 is: 5,419,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190,235.15 : 9,922,739.39 = 3,927,203.81 : x
  2. Step 2: Convert to fraction form
    7,190,235.15/9,922,739.39 = 3,927,203.81/x
  3. Step 3: Cross multiply
    7,190,235.15x = 9,922,739.39 × 3,927,203.81
  4. Step 4: Simplify right side
    7,190,235.15x = 38,968,619,976,548.05
  5. Step 5: Solve for x
    x = 38,968,619,976,548.05/7,190,235.15
  6. Step 6: Final answer
    x = 5,419,658.63

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1.5x scale

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.