Finding the Fourth Proportional to 6,876,346.20, 10,314,519.30 and 5,679,619.80
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Solution
The fourth proportional to 6,876,346.20, 10,314,519.30 and 5,679,619.80 is: 8,519,429.70
Step by Step Solution
- Step 1: Write the proportion equation
6,876,346.20 : 10,314,519.30 = 5,679,619.80 : x - Step 2: Convert to fraction form
6,876,346.20/10,314,519.30 = 5,679,619.80/x - Step 3: Cross multiply
6,876,346.20x = 10,314,519.30 × 5,679,619.80 - Step 4: Simplify right side
6,876,346.20x = 58,582,548,043,762.14 - Step 5: Solve for x
x = 58,582,548,043,762.14/6,876,346.20 - Step 6: Final answer
x = 8,519,429.70
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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.