Finding the Fourth Proportional to 5,357,201.28, 7,392,988.80 and 2,942,753.28
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Solution
The fourth proportional to 5,357,201.28, 7,392,988.80 and 2,942,753.28 is: 4,061,027.56
Step by Step Solution
- Step 1: Write the proportion equation
5,357,201.28 : 7,392,988.80 = 2,942,753.28 : x - Step 2: Convert to fraction form
5,357,201.28/7,392,988.80 = 2,942,753.28/x - Step 3: Cross multiply
5,357,201.28x = 7,392,988.80 × 2,942,753.28 - Step 4: Simplify right side
5,357,201.28x = 21,755,742,040,203.26 - Step 5: Solve for x
x = 21,755,742,040,203.26/5,357,201.28 - Step 6: Final answer
x = 4,061,027.56
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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.