Home / 505,670,234.40-697,881,556.08-285,667,832.16

Finding the Fourth Proportional to 505,670,234.40, 697,881,556.08 and 285,667,832.16

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Solution

The fourth proportional to 505,670,234.40, 697,881,556.08 and 285,667,832.16 is: 394,253,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,670,234.40 : 697,881,556.08 = 285,667,832.16 : x
  2. Step 2: Convert to fraction form
    505,670,234.40/697,881,556.08 = 285,667,832.16/x
  3. Step 3: Cross multiply
    505,670,234.40x = 697,881,556.08 × 285,667,832.16
  4. Step 4: Simplify right side
    505,670,234.40x = 199,362,311,229,821,088
  5. Step 5: Solve for x
    x = 199,362,311,229,821,088/505,670,234.40
  6. Step 6: Final answer
    x = 394,253,601.79

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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.