Finding the Fourth Proportional to 1,424,386,914.91, 1,965,665,483.92 and 789,318,014.79
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Solution
The fourth proportional to 1,424,386,914.91, 1,965,665,483.92 and 789,318,014.79 is: 1,089,265,255.99
Step by Step Solution
- Step 1: Write the proportion equation
1,424,386,914.91 : 1,965,665,483.92 = 789,318,014.79 : x - Step 2: Convert to fraction form
1,424,386,914.91/1,965,665,483.92 = 789,318,014.79/x - Step 3: Cross multiply
1,424,386,914.91x = 1,965,665,483.92 × 789,318,014.79 - Step 4: Simplify right side
1,424,386,914.91x = 1,551,535,177,505,012,480 - Step 5: Solve for x
x = 1,551,535,177,505,012,480/1,424,386,914.91 - Step 6: Final answer
x = 1,089,265,255.99
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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.