Finding the Fourth Proportional to 5,178,290.09, 7,149,101.88 and 4,603,739.81
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Solution
The fourth proportional to 5,178,290.09, 7,149,101.88 and 4,603,739.81 is: 6,355,882.80
Step by Step Solution
- Step 1: Write the proportion equation
5,178,290.09 : 7,149,101.88 = 4,603,739.81 : x - Step 2: Convert to fraction form
5,178,290.09/7,149,101.88 = 4,603,739.81/x - Step 3: Cross multiply
5,178,290.09x = 7,149,101.88 × 4,603,739.81 - Step 4: Simplify right side
5,178,290.09x = 32,912,604,930,701.84 - Step 5: Solve for x
x = 32,912,604,930,701.84/5,178,290.09 - Step 6: Final answer
x = 6,355,882.80
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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.