Finding the Fourth Proportional to 19,386,241.62, 29,079,663.84 and 5,740,768.20
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Solution
The fourth proportional to 19,386,241.62, 29,079,663.84 and 5,740,768.20 is: 8,611,241.56
Step by Step Solution
- Step 1: Write the proportion equation
19,386,241.62 : 29,079,663.84 = 5,740,768.20 : x - Step 2: Convert to fraction form
19,386,241.62/29,079,663.84 = 5,740,768.20/x - Step 3: Cross multiply
19,386,241.62x = 29,079,663.84 × 5,740,768.20 - Step 4: Simplify right side
19,386,241.62x = 166,939,609,439,361.91 - Step 5: Solve for x
x = 166,939,609,439,361.91/19,386,241.62 - Step 6: Final answer
x = 8,611,241.56
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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.