Finding the Fourth Proportional to 1,382,628,716.74, 1,908,175,493.91 and 847,135,757.44
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Solution
The fourth proportional to 1,382,628,716.74, 1,908,175,493.91 and 847,135,757.44 is: 1,169,137,941.94
Step by Step Solution
- Step 1: Write the proportion equation
1,382,628,716.74 : 1,908,175,493.91 = 847,135,757.44 : x - Step 2: Convert to fraction form
1,382,628,716.74/1,908,175,493.91 = 847,135,757.44/x - Step 3: Cross multiply
1,382,628,716.74x = 1,908,175,493.91 × 847,135,757.44 - Step 4: Simplify right side
1,382,628,716.74x = 1,616,483,692,361,894,144 - Step 5: Solve for x
x = 1,616,483,692,361,894,144/1,382,628,716.74 - Step 6: Final answer
x = 1,169,137,941.94
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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.