Finding the Fourth Proportional to 18,985,129.70, 26,199,479.88 and 10,283,302.31
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Solution
The fourth proportional to 18,985,129.70, 26,199,479.88 and 10,283,302.31 is: 14,190,957.67
Step by Step Solution
- Step 1: Write the proportion equation
18,985,129.70 : 26,199,479.88 = 10,283,302.31 : x - Step 2: Convert to fraction form
18,985,129.70/26,199,479.88 = 10,283,302.31/x - Step 3: Cross multiply
18,985,129.70x = 26,199,479.88 × 10,283,302.31 - Step 4: Simplify right side
18,985,129.70x = 269,417,171,839,805.09 - Step 5: Solve for x
x = 269,417,171,839,805.09/18,985,129.70 - Step 6: Final answer
x = 14,190,957.67
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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.