Finding the Fourth Proportional to 5,348,381.48, 7,380,712.16 and 2,900,939.96
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Solution
The fourth proportional to 5,348,381.48, 7,380,712.16 and 2,900,939.96 is: 4,003,267.70
Step by Step Solution
- Step 1: Write the proportion equation
5,348,381.48 : 7,380,712.16 = 2,900,939.96 : x - Step 2: Convert to fraction form
5,348,381.48/7,380,712.16 = 2,900,939.96/x - Step 3: Cross multiply
5,348,381.48x = 7,380,712.16 × 2,900,939.96 - Step 4: Simplify right side
5,348,381.48x = 21,411,002,838,201.91 - Step 5: Solve for x
x = 21,411,002,838,201.91/5,348,381.48 - Step 6: Final answer
x = 4,003,267.70
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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.