Finding the Fourth Proportional to 1,424,626,634.18, 1,965,984,941.57 and 789,588,125.26
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Solution
The fourth proportional to 1,424,626,634.18, 1,965,984,941.57 and 789,588,125.26 is: 1,089,631,716.16
Step by Step Solution
- Step 1: Write the proportion equation
1,424,626,634.18 : 1,965,984,941.57 = 789,588,125.26 : x - Step 2: Convert to fraction form
1,424,626,634.18/1,965,984,941.57 = 789,588,125.26/x - Step 3: Cross multiply
1,424,626,634.18x = 1,965,984,941.57 × 789,588,125.26 - Step 4: Simplify right side
1,424,626,634.18x = 1,552,318,364,294,784,256 - Step 5: Solve for x
x = 1,552,318,364,294,784,256/1,424,626,634.18 - Step 6: Final answer
x = 1,089,631,716.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.