Finding the Fourth Proportional to 9,678,531.29, 13,356,372.99 and 5,268,273.74
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Solution
The fourth proportional to 9,678,531.29, 13,356,372.99 and 5,268,273.74 is: 7,270,217.66
Step by Step Solution
- Step 1: Write the proportion equation
9,678,531.29 : 13,356,372.99 = 5,268,273.74 : x - Step 2: Convert to fraction form
9,678,531.29/13,356,372.99 = 5,268,273.74/x - Step 3: Cross multiply
9,678,531.29x = 13,356,372.99 × 5,268,273.74 - Step 4: Simplify right side
9,678,531.29x = 70,365,029,084,862.29 - Step 5: Solve for x
x = 70,365,029,084,862.29/9,678,531.29 - Step 6: Final answer
x = 7,270,217.66
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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.