Home / 1,026,431,999.80-1,539,647,999.70-922,519,756.60

Finding the Fourth Proportional to 1,026,431,999.80, 1,539,647,999.70 and 922,519,756.60

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Solution

The fourth proportional to 1,026,431,999.80, 1,539,647,999.70 and 922,519,756.60 is: 1,383,779,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,431,999.80 : 1,539,647,999.70 = 922,519,756.60 : x
  2. Step 2: Convert to fraction form
    1,026,431,999.80/1,539,647,999.70 = 922,519,756.60/x
  3. Step 3: Cross multiply
    1,026,431,999.80x = 1,539,647,999.70 × 922,519,756.60
  4. Step 4: Simplify right side
    1,026,431,999.80x = 1,420,355,697,932,920,832
  5. Step 5: Solve for x
    x = 1,420,355,697,932,920,832/1,026,431,999.80
  6. Step 6: Final answer
    x = 1,383,779,634.90

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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.