Finding the Fourth Proportional to 8,308,863.74, 11,472,304.92 and 5,370,419.05
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Solution
The fourth proportional to 8,308,863.74, 11,472,304.92 and 5,370,419.05 is: 7,415,103.53
Step by Step Solution
- Step 1: Write the proportion equation
8,308,863.74 : 11,472,304.92 = 5,370,419.05 : x - Step 2: Convert to fraction form
8,308,863.74/11,472,304.92 = 5,370,419.05/x - Step 3: Cross multiply
8,308,863.74x = 11,472,304.92 × 5,370,419.05 - Step 4: Simplify right side
8,308,863.74x = 61,611,084,889,776.73 - Step 5: Solve for x
x = 61,611,084,889,776.73/8,308,863.74 - Step 6: Final answer
x = 7,415,103.53
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1.5x scale
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.