Finding the Fourth Proportional to 5,115,116.64, 7,058,753.28 and 2,791,932.48
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Solution
The fourth proportional to 5,115,116.64, 7,058,753.28 and 2,791,932.48 is: 3,852,808.05
Step by Step Solution
- Step 1: Write the proportion equation
5,115,116.64 : 7,058,753.28 = 2,791,932.48 : x - Step 2: Convert to fraction form
5,115,116.64/7,058,753.28 = 2,791,932.48/x - Step 3: Cross multiply
5,115,116.64x = 7,058,753.28 × 2,791,932.48 - Step 4: Simplify right side
5,115,116.64x = 19,707,562,550,738.54 - Step 5: Solve for x
x = 19,707,562,550,738.54/5,115,116.64 - Step 6: Final answer
x = 3,852,808.05
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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.