Finding the Fourth Proportional to 18,228,476.40, 27,353,212.20 and 6,877,071.60
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Solution
The fourth proportional to 18,228,476.40, 27,353,212.20 and 6,877,071.60 is: 10,319,567.84
Step by Step Solution
- Step 1: Write the proportion equation
18,228,476.40 : 27,353,212.20 = 6,877,071.60 : x - Step 2: Convert to fraction form
18,228,476.40/27,353,212.20 = 6,877,071.60/x - Step 3: Cross multiply
18,228,476.40x = 27,353,212.20 × 6,877,071.60 - Step 4: Simplify right side
18,228,476.40x = 188,109,998,789,393.50 - Step 5: Solve for x
x = 188,109,998,789,393.50/18,228,476.40 - Step 6: Final answer
x = 10,319,567.84
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1.5x scale
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.