Finding the Fourth Proportional to 6,420,630.99, 8,860,468.62 and 3,519,959.65
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Solution
The fourth proportional to 6,420,630.99, 8,860,468.62 and 3,519,959.65 is: 4,857,543.14
Step by Step Solution
- Step 1: Write the proportion equation
6,420,630.99 : 8,860,468.62 = 3,519,959.65 : x - Step 2: Convert to fraction form
6,420,630.99/8,860,468.62 = 3,519,959.65/x - Step 3: Cross multiply
6,420,630.99x = 8,860,468.62 × 3,519,959.65 - Step 4: Simplify right side
6,420,630.99x = 31,188,492,022,491.18 - Step 5: Solve for x
x = 31,188,492,022,491.18/6,420,630.99 - Step 6: Final answer
x = 4,857,543.14
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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.