Finding the Fourth Proportional to 19,546,519.40, 29,331,212.70 and 8,186,013.80
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Solution
The fourth proportional to 19,546,519.40, 29,331,212.70 and 8,186,013.80 is: 12,283,809.05
Step by Step Solution
- Step 1: Write the proportion equation
19,546,519.40 : 29,331,212.70 = 8,186,013.80 : x - Step 2: Convert to fraction form
19,546,519.40/29,331,212.70 = 8,186,013.80/x - Step 3: Cross multiply
19,546,519.40x = 29,331,212.70 × 8,186,013.80 - Step 4: Simplify right side
19,546,519.40x = 240,105,711,932,935.25 - Step 5: Solve for x
x = 240,105,711,932,935.25/19,546,519.40 - Step 6: Final answer
x = 12,283,809.05
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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.