Finding the Fourth Proportional to 74,711,601.25, 111,910,460.73 and 47,403,837.66
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Solution
The fourth proportional to 74,711,601.25, 111,910,460.73 and 47,403,837.66 is: 71,006,178.75
Step by Step Solution
- Step 1: Write the proportion equation
74,711,601.25 : 111,910,460.73 = 47,403,837.66 : x - Step 2: Convert to fraction form
74,711,601.25/111,910,460.73 = 47,403,837.66/x - Step 3: Cross multiply
74,711,601.25x = 111,910,460.73 × 47,403,837.66 - Step 4: Simplify right side
74,711,601.25x = 5,304,985,313,142,625 - Step 5: Solve for x
x = 5,304,985,313,142,625/74,711,601.25 - Step 6: Final answer
x = 71,006,178.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.