Home / 505,669,730.40-697,880,860.56-285,667,328.16

Finding the Fourth Proportional to 505,669,730.40, 697,880,860.56 and 285,667,328.16

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Solution

The fourth proportional to 505,669,730.40, 697,880,860.56 and 285,667,328.16 is: 394,252,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,669,730.40 : 697,880,860.56 = 285,667,328.16 : x
  2. Step 2: Convert to fraction form
    505,669,730.40/697,880,860.56 = 285,667,328.16/x
  3. Step 3: Cross multiply
    505,669,730.40x = 697,880,860.56 × 285,667,328.16
  4. Step 4: Simplify right side
    505,669,730.40x = 199,361,760,810,176,736
  5. Step 5: Solve for x
    x = 199,361,760,810,176,736/505,669,730.40
  6. Step 6: Final answer
    x = 394,252,906.24

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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.