Finding the Fourth Proportional to 9,691,278.48, 13,374,053.99 and 5,340,520.49
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Solution
The fourth proportional to 9,691,278.48, 13,374,053.99 and 5,340,520.49 is: 7,369,967.69
Step by Step Solution
- Step 1: Write the proportion equation
9,691,278.48 : 13,374,053.99 = 5,340,520.49 : x - Step 2: Convert to fraction form
9,691,278.48/13,374,053.99 = 5,340,520.49/x - Step 3: Cross multiply
9,691,278.48x = 13,374,053.99 × 5,340,520.49 - Step 4: Simplify right side
9,691,278.48x = 71,424,409,274,388.39 - Step 5: Solve for x
x = 71,424,409,274,388.39/9,691,278.48 - Step 6: Final answer
x = 7,369,967.69
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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.