Finding the Fourth Proportional to 12,360,712.23, 17,056,553.84 and 7,135,403.79
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Solution
The fourth proportional to 12,360,712.23, 17,056,553.84 and 7,135,403.79 is: 9,846,147.75
Step by Step Solution
- Step 1: Write the proportion equation
12,360,712.23 : 17,056,553.84 = 7,135,403.79 : x - Step 2: Convert to fraction form
12,360,712.23/17,056,553.84 = 7,135,403.79/x - Step 3: Cross multiply
12,360,712.23x = 17,056,553.84 × 7,135,403.79 - Step 4: Simplify right side
12,360,712.23x = 121,705,398,969,317.89 - Step 5: Solve for x
x = 121,705,398,969,317.89/12,360,712.23 - Step 6: Final answer
x = 9,846,147.75
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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.