Home / 30,795,198.35-42,494,494.10-18,402,832.58

Finding the Fourth Proportional to 30,795,198.35, 42,494,494.10 and 18,402,832.58

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Solution

The fourth proportional to 30,795,198.35, 42,494,494.10 and 18,402,832.58 is: 25,394,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,795,198.35 : 42,494,494.10 = 18,402,832.58 : x
  2. Step 2: Convert to fraction form
    30,795,198.35/42,494,494.10 = 18,402,832.58/x
  3. Step 3: Cross multiply
    30,795,198.35x = 42,494,494.10 × 18,402,832.58
  4. Step 4: Simplify right side
    30,795,198.35x = 782,019,060,189,611.12
  5. Step 5: Solve for x
    x = 782,019,060,189,611.12/30,795,198.35
  6. Step 6: Final answer
    x = 25,394,188.13

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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.