Home / 324,038,481.70-486,058,983.57-78,394,722.40

Finding the Fourth Proportional to 324,038,481.70, 486,058,983.57 and 78,394,722.40

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Solution

The fourth proportional to 324,038,481.70, 486,058,983.57 and 78,394,722.40 is: 117,592,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,038,481.70 : 486,058,983.57 = 78,394,722.40 : x
  2. Step 2: Convert to fraction form
    324,038,481.70/486,058,983.57 = 78,394,722.40/x
  3. Step 3: Cross multiply
    324,038,481.70x = 486,058,983.57 × 78,394,722.40
  4. Step 4: Simplify right side
    324,038,481.70x = 38,104,459,085,922,152
  5. Step 5: Solve for x
    x = 38,104,459,085,922,152/324,038,481.70
  6. Step 6: Final answer
    x = 117,592,388.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.