Finding the Fourth Proportional to 1,289,067,895.73, 1,929,747,814.99 and 789,505,446.08
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Solution
The fourth proportional to 1,289,067,895.73, 1,929,747,814.99 and 789,505,446.08 is: 1,181,897,722.02
Step by Step Solution
- Step 1: Write the proportion equation
1,289,067,895.73 : 1,929,747,814.99 = 789,505,446.08 : x - Step 2: Convert to fraction form
1,289,067,895.73/1,929,747,814.99 = 789,505,446.08/x - Step 3: Cross multiply
1,289,067,895.73x = 1,929,747,814.99 × 789,505,446.08 - Step 4: Simplify right side
1,289,067,895.73x = 1,523,546,409,495,585,280 - Step 5: Solve for x
x = 1,523,546,409,495,585,280/1,289,067,895.73 - Step 6: Final answer
x = 1,181,897,722.02
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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.