Finding the Fourth Proportional to 7,836,039.15, 10,813,140.79 and 4,397,615.88
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Solution
The fourth proportional to 7,836,039.15, 10,813,140.79 and 4,397,615.88 is: 6,068,376.99
Step by Step Solution
- Step 1: Write the proportion equation
7,836,039.15 : 10,813,140.79 = 4,397,615.88 : x - Step 2: Convert to fraction form
7,836,039.15/10,813,140.79 = 4,397,615.88/x - Step 3: Cross multiply
7,836,039.15x = 10,813,140.79 × 4,397,615.88 - Step 4: Simplify right side
7,836,039.15x = 47,552,039,650,779.74 - Step 5: Solve for x
x = 47,552,039,650,779.74/7,836,039.15 - Step 6: Final answer
x = 6,068,376.99
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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.