Home / 220,212,329.80-329,864,376.30-129,059,638.60

Finding the Fourth Proportional to 220,212,329.80, 329,864,376.30 and 129,059,638.60

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Solution

The fourth proportional to 220,212,329.80, 329,864,376.30 and 129,059,638.60 is: 193,323,313.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,212,329.80 : 329,864,376.30 = 129,059,638.60 : x
  2. Step 2: Convert to fraction form
    220,212,329.80/329,864,376.30 = 129,059,638.60/x
  3. Step 3: Cross multiply
    220,212,329.80x = 329,864,376.30 × 129,059,638.60
  4. Step 4: Simplify right side
    220,212,329.80x = 42,572,177,192,292,408
  5. Step 5: Solve for x
    x = 42,572,177,192,292,408/220,212,329.80
  6. Step 6: Final answer
    x = 193,323,313.14

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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.