Home / 622,081,313.28-858,498,292.89-357,763,512.69

Finding the Fourth Proportional to 622,081,313.28, 858,498,292.89 and 357,763,512.69

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Solution

The fourth proportional to 622,081,313.28, 858,498,292.89 and 357,763,512.69 is: 493,728,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,081,313.28 : 858,498,292.89 = 357,763,512.69 : x
  2. Step 2: Convert to fraction form
    622,081,313.28/858,498,292.89 = 357,763,512.69/x
  3. Step 3: Cross multiply
    622,081,313.28x = 858,498,292.89 × 357,763,512.69
  4. Step 4: Simplify right side
    622,081,313.28x = 307,139,364,902,694,848
  5. Step 5: Solve for x
    x = 307,139,364,902,694,848/622,081,313.28
  6. Step 6: Final answer
    x = 493,728,646.64

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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.