Home / 1,339,974,382.40-2,010,024,559.20-419,880,737.60

Finding the Fourth Proportional to 1,339,974,382.40, 2,010,024,559.20 and 419,880,737.60

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Solution

The fourth proportional to 1,339,974,382.40, 2,010,024,559.20 and 419,880,737.60 is: 629,840,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,974,382.40 : 2,010,024,559.20 = 419,880,737.60 : x
  2. Step 2: Convert to fraction form
    1,339,974,382.40/2,010,024,559.20 = 419,880,737.60/x
  3. Step 3: Cross multiply
    1,339,974,382.40x = 2,010,024,559.20 × 419,880,737.60
  4. Step 4: Simplify right side
    1,339,974,382.40x = 843,970,594,511,010,944
  5. Step 5: Solve for x
    x = 843,970,594,511,010,944/1,339,974,382.40
  6. Step 6: Final answer
    x = 629,840,842.93

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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.