Home / 30,494,396.40-42,082,945.20-16,743,415.20

Finding the Fourth Proportional to 30,494,396.40, 42,082,945.20 and 16,743,415.20

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Solution

The fourth proportional to 30,494,396.40, 42,082,945.20 and 16,743,415.20 is: 23,106,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,494,396.40 : 42,082,945.20 = 16,743,415.20 : x
  2. Step 2: Convert to fraction form
    30,494,396.40/42,082,945.20 = 16,743,415.20/x
  3. Step 3: Cross multiply
    30,494,396.40x = 42,082,945.20 × 16,743,415.20
  4. Step 4: Simplify right side
    30,494,396.40x = 704,612,224,322,447
  5. Step 5: Solve for x
    x = 704,612,224,322,447/30,494,396.40
  6. Step 6: Final answer
    x = 23,106,285.33

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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.