Finding the Fourth Proportional to 5,103,783.36, 7,042,960.16 and 2,811,897.92
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Solution
The fourth proportional to 5,103,783.36, 7,042,960.16 and 2,811,897.92 is: 3,880,275.40
Step by Step Solution
- Step 1: Write the proportion equation
5,103,783.36 : 7,042,960.16 = 2,811,897.92 : x - Step 2: Convert to fraction form
5,103,783.36/7,042,960.16 = 2,811,897.92/x - Step 3: Cross multiply
5,103,783.36x = 7,042,960.16 × 2,811,897.92 - Step 4: Simplify right side
5,103,783.36x = 19,804,085,024,546.87 - Step 5: Solve for x
x = 19,804,085,024,546.87/5,103,783.36 - Step 6: Final answer
x = 3,880,275.40
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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.