Home / 505,568,991,468.25-697,737,209,020.95-307,601,569,986.54

Finding the Fourth Proportional to 505,568,991,468.25, 697,737,209,020.95 and 307,601,569,986.54

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Solution

The fourth proportional to 505,568,991,468.25, 697,737,209,020.95 and 307,601,569,986.54 is: 424,521,805,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,568,991,468.25 : 697,737,209,020.95 = 307,601,569,986.54 : x
  2. Step 2: Convert to fraction form
    505,568,991,468.25/697,737,209,020.95 = 307,601,569,986.54/x
  3. Step 3: Cross multiply
    505,568,991,468.25x = 697,737,209,020.95 × 307,601,569,986.54
  4. Step 4: Simplify right side
    505,568,991,468.25x = 214,625,060,932,870,798,835,712
  5. Step 5: Solve for x
    x = 214,625,060,932,870,798,835,712/505,568,991,468.25
  6. Step 6: Final answer
    x = 424,521,805,242.78

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Double scale
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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.