Finding the Fourth Proportional to 1,424,626,654.97, 1,965,984,970.28 and 789,588,146.06
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Solution
The fourth proportional to 1,424,626,654.97, 1,965,984,970.28 and 789,588,146.06 is: 1,089,631,744.89
Step by Step Solution
- Step 1: Write the proportion equation
1,424,626,654.97 : 1,965,984,970.28 = 789,588,146.06 : x - Step 2: Convert to fraction form
1,424,626,654.97/1,965,984,970.28 = 789,588,146.06/x - Step 3: Cross multiply
1,424,626,654.97x = 1,965,984,970.28 × 789,588,146.06 - Step 4: Simplify right side
1,424,626,654.97x = 1,552,318,427,874,294,272 - Step 5: Solve for x
x = 1,552,318,427,874,294,272/1,424,626,654.97 - Step 6: Final answer
x = 1,089,631,744.89
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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.