Finding the Fourth Proportional to 68,183,171.80, 94,069,436.88 and 38,807,146.96
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Solution
The fourth proportional to 68,183,171.80, 94,069,436.88 and 38,807,146.96 is: 53,540,578.49
Step by Step Solution
- Step 1: Write the proportion equation
68,183,171.80 : 94,069,436.88 = 38,807,146.96 : x - Step 2: Convert to fraction form
68,183,171.80/94,069,436.88 = 38,807,146.96/x - Step 3: Cross multiply
68,183,171.80x = 94,069,436.88 × 38,807,146.96 - Step 4: Simplify right side
68,183,171.80x = 3,650,566,461,446,604 - Step 5: Solve for x
x = 3,650,566,461,446,604/68,183,171.80 - Step 6: Final answer
x = 53,540,578.49
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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.