Finding the Fourth Proportional to 3,894,887.68, 5,375,054.64 and 2,176,197.28
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Solution
The fourth proportional to 3,894,887.68, 5,375,054.64 and 2,176,197.28 is: 3,003,213.51
Step by Step Solution
- Step 1: Write the proportion equation
3,894,887.68 : 5,375,054.64 = 2,176,197.28 : x - Step 2: Convert to fraction form
3,894,887.68/5,375,054.64 = 2,176,197.28/x - Step 3: Cross multiply
3,894,887.68x = 5,375,054.64 × 2,176,197.28 - Step 4: Simplify right side
3,894,887.68x = 11,697,179,287,419.38 - Step 5: Solve for x
x = 11,697,179,287,419.38/3,894,887.68 - Step 6: Final answer
x = 3,003,213.51
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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.