Home / 405,122,389.39-559,061,609.75-228,906,601.34

Finding the Fourth Proportional to 405,122,389.39, 559,061,609.75 and 228,906,601.34

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Solution

The fourth proportional to 405,122,389.39, 559,061,609.75 and 228,906,601.34 is: 315,886,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,122,389.39 : 559,061,609.75 = 228,906,601.34 : x
  2. Step 2: Convert to fraction form
    405,122,389.39/559,061,609.75 = 228,906,601.34/x
  3. Step 3: Cross multiply
    405,122,389.39x = 559,061,609.75 × 228,906,601.34
  4. Step 4: Simplify right side
    405,122,389.39x = 127,972,893,027,602,384
  5. Step 5: Solve for x
    x = 127,972,893,027,602,384/405,122,389.39
  6. Step 6: Final answer
    x = 315,886,992.13

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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.