Home / 1,248,715,639.56-1,873,188,598-408,362,742.19

Finding the Fourth Proportional to 1,248,715,639.56, 1,873,188,598 and 408,362,742.19

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Solution

The fourth proportional to 1,248,715,639.56, 1,873,188,598 and 408,362,742.19 is: 612,581,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,715,639.56 : 1,873,188,598 = 408,362,742.19 : x
  2. Step 2: Convert to fraction form
    1,248,715,639.56/1,873,188,598 = 408,362,742.19/x
  3. Step 3: Cross multiply
    1,248,715,639.56x = 1,873,188,598 × 408,362,742.19
  4. Step 4: Simplify right side
    1,248,715,639.56x = 764,940,432,518,321,536
  5. Step 5: Solve for x
    x = 764,940,432,518,321,536/1,248,715,639.56
  6. Step 6: Final answer
    x = 612,581,766.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.