Finding the Fourth Proportional to 5,178,292.09, 7,149,104.64 and 4,603,741.81
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Solution
The fourth proportional to 5,178,292.09, 7,149,104.64 and 4,603,741.81 is: 6,355,885.56
Step by Step Solution
- Step 1: Write the proportion equation
5,178,292.09 : 7,149,104.64 = 4,603,741.81 : x - Step 2: Convert to fraction form
5,178,292.09/7,149,104.64 = 4,603,741.81/x - Step 3: Cross multiply
5,178,292.09x = 7,149,104.64 × 4,603,741.81 - Step 4: Simplify right side
5,178,292.09x = 32,912,631,935,232.99 - Step 5: Solve for x
x = 32,912,631,935,232.99/5,178,292.09 - Step 6: Final answer
x = 6,355,885.56
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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.