Finding the Fourth Proportional to 9,721,293.36, 13,415,342.70 and 5,370,379.44
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Solution
The fourth proportional to 9,721,293.36, 13,415,342.70 and 5,370,379.44 is: 7,411,100.35
Step by Step Solution
- Step 1: Write the proportion equation
9,721,293.36 : 13,415,342.70 = 5,370,379.44 : x - Step 2: Convert to fraction form
9,721,293.36/13,415,342.70 = 5,370,379.44/x - Step 3: Cross multiply
9,721,293.36x = 13,415,342.70 × 5,370,379.44 - Step 4: Simplify right side
9,721,293.36x = 72,045,480,616,634.09 - Step 5: Solve for x
x = 72,045,480,616,634.09/9,721,293.36 - Step 6: Final answer
x = 7,411,100.35
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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.