Finding the Fourth Proportional to 11,389,745.36, 15,717,838.37 and 6,429,231.07
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Solution
The fourth proportional to 11,389,745.36, 15,717,838.37 and 6,429,231.07 is: 8,872,333.10
Step by Step Solution
- Step 1: Write the proportion equation
11,389,745.36 : 15,717,838.37 = 6,429,231.07 : x - Step 2: Convert to fraction form
11,389,745.36/15,717,838.37 = 6,429,231.07/x - Step 3: Cross multiply
11,389,745.36x = 15,717,838.37 × 6,429,231.07 - Step 4: Simplify right side
11,389,745.36x = 101,053,614,730,201.41 - Step 5: Solve for x
x = 101,053,614,730,201.41/11,389,745.36 - Step 6: Final answer
x = 8,872,333.10
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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.