Finding the Fourth Proportional to 13,942,995.62, 19,238,181.40 and 8,436,233.53
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Solution
The fourth proportional to 13,942,995.62, 19,238,181.40 and 8,436,233.53 is: 11,640,094.81
Step by Step Solution
- Step 1: Write the proportion equation
13,942,995.62 : 19,238,181.40 = 8,436,233.53 : x - Step 2: Convert to fraction form
13,942,995.62/19,238,181.40 = 8,436,233.53/x - Step 3: Cross multiply
13,942,995.62x = 19,238,181.40 × 8,436,233.53 - Step 4: Simplify right side
13,942,995.62x = 162,297,790,982,902.31 - Step 5: Solve for x
x = 162,297,790,982,902.31/13,942,995.62 - Step 6: Final answer
x = 11,640,094.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.