Finding the Fourth Proportional to 76,979,557.89, 115,486,570.35 and 25,860,182.49
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Solution
The fourth proportional to 76,979,557.89, 115,486,570.35 and 25,860,182.49 is: 38,796,063.09
Step by Step Solution
- Step 1: Write the proportion equation
76,979,557.89 : 115,486,570.35 = 25,860,182.49 : x - Step 2: Convert to fraction form
76,979,557.89/115,486,570.35 = 25,860,182.49/x - Step 3: Cross multiply
76,979,557.89x = 115,486,570.35 × 25,860,182.49 - Step 4: Simplify right side
76,979,557.89x = 2,986,503,784,395,223 - Step 5: Solve for x
x = 2,986,503,784,395,223/76,979,557.89 - Step 6: Final answer
x = 38,796,063.09
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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.