Finding the Fourth Proportional to 11,354,217.30, 15,666,724.08 and 6,459,153.48
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Solution
The fourth proportional to 11,354,217.30, 15,666,724.08 and 6,459,153.48 is: 8,912,439.55
Step by Step Solution
- Step 1: Write the proportion equation
11,354,217.30 : 15,666,724.08 = 6,459,153.48 : x - Step 2: Convert to fraction form
11,354,217.30/15,666,724.08 = 6,459,153.48/x - Step 3: Cross multiply
11,354,217.30x = 15,666,724.08 × 6,459,153.48 - Step 4: Simplify right side
11,354,217.30x = 101,193,775,361,531.81 - Step 5: Solve for x
x = 101,193,775,361,531.81/11,354,217.30 - Step 6: Final answer
x = 8,912,439.55
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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.