Home / 203,641,280.20-281,034,220.80-120,012,940.36

Finding the Fourth Proportional to 203,641,280.20, 281,034,220.80 and 120,012,940.36

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Solution

The fourth proportional to 203,641,280.20, 281,034,220.80 and 120,012,940.36 is: 165,623,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,641,280.20 : 281,034,220.80 = 120,012,940.36 : x
  2. Step 2: Convert to fraction form
    203,641,280.20/281,034,220.80 = 120,012,940.36/x
  3. Step 3: Cross multiply
    203,641,280.20x = 281,034,220.80 × 120,012,940.36
  4. Step 4: Simplify right side
    203,641,280.20x = 33,727,743,179,989,472
  5. Step 5: Solve for x
    x = 33,727,743,179,989,472/203,641,280.20
  6. Step 6: Final answer
    x = 165,623,311.48

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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.