Finding the Fourth Proportional to 19,961,211.70, 27,546,636.90 and 11,020,609.90
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Solution
The fourth proportional to 19,961,211.70, 27,546,636.90 and 11,020,609.90 is: 15,208,532.62
Step by Step Solution
- Step 1: Write the proportion equation
19,961,211.70 : 27,546,636.90 = 11,020,609.90 : x - Step 2: Convert to fraction form
19,961,211.70/27,546,636.90 = 11,020,609.90/x - Step 3: Cross multiply
19,961,211.70x = 27,546,636.90 × 11,020,609.90 - Step 4: Simplify right side
19,961,211.70x = 303,580,739,331,845.31 - Step 5: Solve for x
x = 303,580,739,331,845.31/19,961,211.70 - Step 6: Final answer
x = 15,208,532.62
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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.