Finding the Fourth Proportional to 10,869,531.61, 16,306,966.93 and 5,407,203.87
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Solution
The fourth proportional to 10,869,531.61, 16,306,966.93 and 5,407,203.87 is: 8,112,133.79
Step by Step Solution
- Step 1: Write the proportion equation
10,869,531.61 : 16,306,966.93 = 5,407,203.87 : x - Step 2: Convert to fraction form
10,869,531.61/16,306,966.93 = 5,407,203.87/x - Step 3: Cross multiply
10,869,531.61x = 16,306,966.93 × 5,407,203.87 - Step 4: Simplify right side
10,869,531.61x = 88,175,094,691,858.02 - Step 5: Solve for x
x = 88,175,094,691,858.02/10,869,531.61 - Step 6: Final answer
x = 8,112,133.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.