Home / 1,481,765,989.39-2,222,779,630.82-418,198,311.18

Finding the Fourth Proportional to 1,481,765,989.39, 2,222,779,630.82 and 418,198,311.18

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Solution

The fourth proportional to 1,481,765,989.39, 2,222,779,630.82 and 418,198,311.18 is: 627,334,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481,765,989.39 : 2,222,779,630.82 = 418,198,311.18 : x
  2. Step 2: Convert to fraction form
    1,481,765,989.39/2,222,779,630.82 = 418,198,311.18/x
  3. Step 3: Cross multiply
    1,481,765,989.39x = 2,222,779,630.82 × 418,198,311.18
  4. Step 4: Simplify right side
    1,481,765,989.39x = 929,562,687,734,227,968
  5. Step 5: Solve for x
    x = 929,562,687,734,227,968/1,481,765,989.39
  6. Step 6: Final answer
    x = 627,334,339.16

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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.