Home / 1,110,500,861.80-1,666,321,662.30-489,151,494.76

Finding the Fourth Proportional to 1,110,500,861.80, 1,666,321,662.30 and 489,151,494.76

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Solution

The fourth proportional to 1,110,500,861.80, 1,666,321,662.30 and 489,151,494.76 is: 733,978,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,500,861.80 : 1,666,321,662.30 = 489,151,494.76 : x
  2. Step 2: Convert to fraction form
    1,110,500,861.80/1,666,321,662.30 = 489,151,494.76/x
  3. Step 3: Cross multiply
    1,110,500,861.80x = 1,666,321,662.30 × 489,151,494.76
  4. Step 4: Simplify right side
    1,110,500,861.80x = 815,083,731,865,012,864
  5. Step 5: Solve for x
    x = 815,083,731,865,012,864/1,110,500,861.80
  6. Step 6: Final answer
    x = 733,978,477.55

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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.