Finding the Fourth Proportional to 3,918,552.11, 5,407,781.36 and 2,176,229.44
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Solution
The fourth proportional to 3,918,552.11, 5,407,781.36 and 2,176,229.44 is: 3,003,296.28
Step by Step Solution
- Step 1: Write the proportion equation
3,918,552.11 : 5,407,781.36 = 2,176,229.44 : x - Step 2: Convert to fraction form
3,918,552.11/5,407,781.36 = 2,176,229.44/x - Step 3: Cross multiply
3,918,552.11x = 5,407,781.36 × 2,176,229.44 - Step 4: Simplify right side
3,918,552.11x = 11,768,572,976,314.64 - Step 5: Solve for x
x = 11,768,572,976,314.64/3,918,552.11 - Step 6: Final answer
x = 3,003,296.28
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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.