Finding the Fourth Proportional to 6,419,302.99, 8,853,472.76 and 5,643,274.57
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Solution
The fourth proportional to 6,419,302.99, 8,853,472.76 and 5,643,274.57 is: 7,783,177.99
Step by Step Solution
- Step 1: Write the proportion equation
6,419,302.99 : 8,853,472.76 = 5,643,274.57 : x - Step 2: Convert to fraction form
6,419,302.99/8,853,472.76 = 5,643,274.57/x - Step 3: Cross multiply
6,419,302.99x = 8,853,472.76 × 5,643,274.57 - Step 4: Simplify right side
6,419,302.99x = 49,962,577,698,018.16 - Step 5: Solve for x
x = 49,962,577,698,018.16/6,419,302.99 - Step 6: Final answer
x = 7,783,177.99
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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.