Home / 30,519,902.25-42,107,048.37-18,913,230.81

Finding the Fourth Proportional to 30,519,902.25, 42,107,048.37 and 18,913,230.81

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Solution

The fourth proportional to 30,519,902.25, 42,107,048.37 and 18,913,230.81 is: 26,093,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519,902.25 : 42,107,048.37 = 18,913,230.81 : x
  2. Step 2: Convert to fraction form
    30,519,902.25/42,107,048.37 = 18,913,230.81/x
  3. Step 3: Cross multiply
    30,519,902.25x = 42,107,048.37 × 18,913,230.81
  4. Step 4: Simplify right side
    30,519,902.25x = 796,380,324,549,644.12
  5. Step 5: Solve for x
    x = 796,380,324,549,644.12/30,519,902.25
  6. Step 6: Final answer
    x = 26,093,803.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.