Finding the Fourth Proportional to 206,988,623.10, 310,415,764.59 and 68,777,114.58
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Solution
The fourth proportional to 206,988,623.10, 310,415,764.59 and 68,777,114.58 is: 103,143,352.95
Step by Step Solution
- Step 1: Write the proportion equation
206,988,623.10 : 310,415,764.59 = 68,777,114.58 : x - Step 2: Convert to fraction form
206,988,623.10/310,415,764.59 = 68,777,114.58/x - Step 3: Cross multiply
206,988,623.10x = 310,415,764.59 × 68,777,114.58 - Step 4: Simplify right side
206,988,623.10x = 21,349,500,608,644,736 - Step 5: Solve for x
x = 21,349,500,608,644,736/206,988,623.10 - Step 6: Final answer
x = 103,143,352.95
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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.