Finding the Fourth Proportional to 19,778,742.42, 29,614,958.73 and 12,551,144.82
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Solution
The fourth proportional to 19,778,742.42, 29,614,958.73 and 12,551,144.82 is: 18,792,986.33
Step by Step Solution
- Step 1: Write the proportion equation
19,778,742.42 : 29,614,958.73 = 12,551,144.82 : x - Step 2: Convert to fraction form
19,778,742.42/29,614,958.73 = 12,551,144.82/x - Step 3: Cross multiply
19,778,742.42x = 29,614,958.73 × 12,551,144.82 - Step 4: Simplify right side
19,778,742.42x = 371,701,635,858,553.31 - Step 5: Solve for x
x = 371,701,635,858,553.31/19,778,742.42 - Step 6: Final answer
x = 18,792,986.33
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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.