Finding the Fourth Proportional to 6,464,855.20, 9,695,727.60 and 1,977,170.08
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Solution
The fourth proportional to 6,464,855.20, 9,695,727.60 and 1,977,170.08 is: 2,965,279.49
Step by Step Solution
- Step 1: Write the proportion equation
6,464,855.20 : 9,695,727.60 = 1,977,170.08 : x - Step 2: Convert to fraction form
6,464,855.20/9,695,727.60 = 1,977,170.08/x - Step 3: Cross multiply
6,464,855.20x = 9,695,727.60 × 1,977,170.08 - Step 4: Simplify right side
6,464,855.20x = 19,170,102,514,550.21 - Step 5: Solve for x
x = 19,170,102,514,550.21/6,464,855.20 - Step 6: Final answer
x = 2,965,279.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.