Home / 30,945,438.95-42,705,729.61-17,007,288.12

Finding the Fourth Proportional to 30,945,438.95, 42,705,729.61 and 17,007,288.12

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Solution

The fourth proportional to 30,945,438.95, 42,705,729.61 and 17,007,288.12 is: 23,470,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945,438.95 : 42,705,729.61 = 17,007,288.12 : x
  2. Step 2: Convert to fraction form
    30,945,438.95/42,705,729.61 = 17,007,288.12/x
  3. Step 3: Cross multiply
    30,945,438.95x = 42,705,729.61 × 17,007,288.12
  4. Step 4: Simplify right side
    30,945,438.95x = 726,308,647,809,567.12
  5. Step 5: Solve for x
    x = 726,308,647,809,567.12/30,945,438.95
  6. Step 6: Final answer
    x = 23,470,620.31

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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.