Finding the Fourth Proportional to 1,424,626,646.19, 1,965,984,958.14 and 789,588,137.25
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Solution
The fourth proportional to 1,424,626,646.19, 1,965,984,958.14 and 789,588,137.25 is: 1,089,631,732.71
Step by Step Solution
- Step 1: Write the proportion equation
1,424,626,646.19 : 1,965,984,958.14 = 789,588,137.25 : x - Step 2: Convert to fraction form
1,424,626,646.19/1,965,984,958.14 = 789,588,137.25/x - Step 3: Cross multiply
1,424,626,646.19x = 1,965,984,958.14 × 789,588,137.25 - Step 4: Simplify right side
1,424,626,646.19x = 1,552,318,400,959,281,920 - Step 5: Solve for x
x = 1,552,318,400,959,281,920/1,424,626,646.19 - Step 6: Final answer
x = 1,089,631,732.71
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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.