Finding the Fourth Proportional to 8,838,025.80, 12,198,149.70 and 5,531,853.12
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Solution
The fourth proportional to 8,838,025.80, 12,198,149.70 and 5,531,853.12 is: 7,635,005.15
Step by Step Solution
- Step 1: Write the proportion equation
8,838,025.80 : 12,198,149.70 = 5,531,853.12 : x - Step 2: Convert to fraction form
8,838,025.80/12,198,149.70 = 5,531,853.12/x - Step 3: Cross multiply
8,838,025.80x = 12,198,149.70 × 5,531,853.12 - Step 4: Simplify right side
8,838,025.80x = 67,478,372,476,172.06 - Step 5: Solve for x
x = 67,478,372,476,172.06/8,838,025.80 - Step 6: Final answer
x = 7,635,005.15
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1.5x scale
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.