Finding the Fourth Proportional to 11,678,283.79, 16,107,074.79 and 7,027,220.15
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Solution
The fourth proportional to 11,678,283.79, 16,107,074.79 and 7,027,220.15 is: 9,692,174.17
Step by Step Solution
- Step 1: Write the proportion equation
11,678,283.79 : 16,107,074.79 = 7,027,220.15 : x - Step 2: Convert to fraction form
11,678,283.79/16,107,074.79 = 7,027,220.15/x - Step 3: Cross multiply
11,678,283.79x = 16,107,074.79 × 7,027,220.15 - Step 4: Simplify right side
11,678,283.79x = 113,187,960,521,845.02 - Step 5: Solve for x
x = 113,187,960,521,845.02/11,678,283.79 - Step 6: Final answer
x = 9,692,174.17
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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.