Finding the Fourth Proportional to 13,355,105.38, 18,430,046.63 and 7,553,762.26
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Solution
The fourth proportional to 13,355,105.38, 18,430,046.63 and 7,553,762.26 is: 10,424,192.60
Step by Step Solution
- Step 1: Write the proportion equation
13,355,105.38 : 18,430,046.63 = 7,553,762.26 : x - Step 2: Convert to fraction form
13,355,105.38/18,430,046.63 = 7,553,762.26/x - Step 3: Cross multiply
13,355,105.38x = 18,430,046.63 × 7,553,762.26 - Step 4: Simplify right side
13,355,105.38x = 139,216,190,683,734.17 - Step 5: Solve for x
x = 139,216,190,683,734.17/13,355,105.38 - Step 6: Final answer
x = 10,424,192.60
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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.