Finding the Fourth Proportional to 6,419,317.24, 8,853,492.40 and 5,643,288.84
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Solution
The fourth proportional to 6,419,317.24, 8,853,492.40 and 5,643,288.84 is: 7,783,197.65
Step by Step Solution
- Step 1: Write the proportion equation
6,419,317.24 : 8,853,492.40 = 5,643,288.84 : x - Step 2: Convert to fraction form
6,419,317.24/8,853,492.40 = 5,643,288.84/x - Step 3: Cross multiply
6,419,317.24x = 8,853,492.40 × 5,643,288.84 - Step 4: Simplify right side
6,419,317.24x = 49,962,814,855,944.82 - Step 5: Solve for x
x = 49,962,814,855,944.82/6,419,317.24 - Step 6: Final answer
x = 7,783,197.65
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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.