Home / 1,981,691,601.78-2,973,696,525.34-738,980,596.20

Finding the Fourth Proportional to 1,981,691,601.78, 2,973,696,525.34 and 738,980,596.20

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Solution

The fourth proportional to 1,981,691,601.78, 2,973,696,525.34 and 738,980,596.20 is: 1,108,903,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,691,601.78 : 2,973,696,525.34 = 738,980,596.20 : x
  2. Step 2: Convert to fraction form
    1,981,691,601.78/2,973,696,525.34 = 738,980,596.20/x
  3. Step 3: Cross multiply
    1,981,691,601.78x = 2,973,696,525.34 × 738,980,596.20
  4. Step 4: Simplify right side
    1,981,691,601.78x = 2,197,504,031,213,621,760
  5. Step 5: Solve for x
    x = 2,197,504,031,213,621,760/1,981,691,601.78
  6. Step 6: Final answer
    x = 1,108,903,135.70

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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.