Finding the Fourth Proportional to 5,228,577.16, 7,215,292.38 and 2,905,409.68
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Solution
The fourth proportional to 5,228,577.16, 7,215,292.38 and 2,905,409.68 is: 4,009,385.28
Step by Step Solution
- Step 1: Write the proportion equation
5,228,577.16 : 7,215,292.38 = 2,905,409.68 : x - Step 2: Convert to fraction form
5,228,577.16/7,215,292.38 = 2,905,409.68/x - Step 3: Cross multiply
5,228,577.16x = 7,215,292.38 × 2,905,409.68 - Step 4: Simplify right side
5,228,577.16x = 20,963,380,324,882.24 - Step 5: Solve for x
x = 20,963,380,324,882.24/5,228,577.16 - Step 6: Final answer
x = 4,009,385.28
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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.