Home / 505,669,707.40-697,880,828.82-285,667,305.16

Finding the Fourth Proportional to 505,669,707.40, 697,880,828.82 and 285,667,305.16

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Solution

The fourth proportional to 505,669,707.40, 697,880,828.82 and 285,667,305.16 is: 394,252,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,669,707.40 : 697,880,828.82 = 285,667,305.16 : x
  2. Step 2: Convert to fraction form
    505,669,707.40/697,880,828.82 = 285,667,305.16/x
  3. Step 3: Cross multiply
    505,669,707.40x = 697,880,828.82 × 285,667,305.16
  4. Step 4: Simplify right side
    505,669,707.40x = 199,361,735,691,836,704
  5. Step 5: Solve for x
    x = 199,361,735,691,836,704/505,669,707.40
  6. Step 6: Final answer
    x = 394,252,874.50

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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.