Home / 493,081,242.45-680,463,129.53-281,383,859.07

Finding the Fourth Proportional to 493,081,242.45, 680,463,129.53 and 281,383,859.07

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Solution

The fourth proportional to 493,081,242.45, 680,463,129.53 and 281,383,859.07 is: 388,316,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,081,242.45 : 680,463,129.53 = 281,383,859.07 : x
  2. Step 2: Convert to fraction form
    493,081,242.45/680,463,129.53 = 281,383,859.07/x
  3. Step 3: Cross multiply
    493,081,242.45x = 680,463,129.53 × 281,383,859.07
  4. Step 4: Simplify right side
    493,081,242.45x = 191,471,341,341,122,752
  5. Step 5: Solve for x
    x = 191,471,341,341,122,752/493,081,242.45
  6. Step 6: Final answer
    x = 388,316,011.36

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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.