Home / 220,848,008.40-331,272,012.60-65,407,420.80

Finding the Fourth Proportional to 220,848,008.40, 331,272,012.60 and 65,407,420.80

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Solution

The fourth proportional to 220,848,008.40, 331,272,012.60 and 65,407,420.80 is: 98,111,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,848,008.40 : 331,272,012.60 = 65,407,420.80 : x
  2. Step 2: Convert to fraction form
    220,848,008.40/331,272,012.60 = 65,407,420.80/x
  3. Step 3: Cross multiply
    220,848,008.40x = 331,272,012.60 × 65,407,420.80
  4. Step 4: Simplify right side
    220,848,008.40x = 21,667,647,927,391,104
  5. Step 5: Solve for x
    x = 21,667,647,927,391,104/220,848,008.40
  6. Step 6: Final answer
    x = 98,111,131.20

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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.