Finding the Fourth Proportional to 682,245,492.56, 941,498,781.21 and 368,979,706.49
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Solution
The fourth proportional to 682,245,492.56, 941,498,781.21 and 368,979,706.49 is: 509,191,995.75
Step by Step Solution
- Step 1: Write the proportion equation
682,245,492.56 : 941,498,781.21 = 368,979,706.49 : x - Step 2: Convert to fraction form
682,245,492.56/941,498,781.21 = 368,979,706.49/x - Step 3: Cross multiply
682,245,492.56x = 941,498,781.21 × 368,979,706.49 - Step 4: Simplify right side
682,245,492.56x = 347,393,943,946,851,072 - Step 5: Solve for x
x = 347,393,943,946,851,072/682,245,492.56 - Step 6: Final answer
x = 509,191,995.75
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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.