Finding the Fourth Proportional to 7,877,405.40, 11,816,108.10 and 6,743,664.60
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Solution
The fourth proportional to 7,877,405.40, 11,816,108.10 and 6,743,664.60 is: 10,115,496.90
Step by Step Solution
- Step 1: Write the proportion equation
7,877,405.40 : 11,816,108.10 = 6,743,664.60 : x - Step 2: Convert to fraction form
7,877,405.40/11,816,108.10 = 6,743,664.60/x - Step 3: Cross multiply
7,877,405.40x = 11,816,108.10 × 6,743,664.60 - Step 4: Simplify right side
7,877,405.40x = 79,683,869,903,743.25 - Step 5: Solve for x
x = 79,683,869,903,743.25/7,877,405.40 - Step 6: Final answer
x = 10,115,496.90
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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.