Finding the Fourth Proportional to 6,686,138.40, 10,029,207.60 and 6,623,152.80
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Solution
The fourth proportional to 6,686,138.40, 10,029,207.60 and 6,623,152.80 is: 9,934,729.20
Step by Step Solution
- Step 1: Write the proportion equation
6,686,138.40 : 10,029,207.60 = 6,623,152.80 : x - Step 2: Convert to fraction form
6,686,138.40/10,029,207.60 = 6,623,152.80/x - Step 3: Cross multiply
6,686,138.40x = 10,029,207.60 × 6,623,152.80 - Step 4: Simplify right side
6,686,138.40x = 66,424,974,397,721.27 - Step 5: Solve for x
x = 66,424,974,397,721.27/6,686,138.40 - Step 6: Final answer
x = 9,934,729.20
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1.5x scale
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.