Finding the Fourth Proportional to 8,243,206.80, 12,364,810.20 and 3,764,230.80
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Solution
The fourth proportional to 8,243,206.80, 12,364,810.20 and 3,764,230.80 is: 5,646,346.20
Step by Step Solution
- Step 1: Write the proportion equation
8,243,206.80 : 12,364,810.20 = 3,764,230.80 : x - Step 2: Convert to fraction form
8,243,206.80/12,364,810.20 = 3,764,230.80/x - Step 3: Cross multiply
8,243,206.80x = 12,364,810.20 × 3,764,230.80 - Step 4: Simplify right side
8,243,206.80x = 46,543,999,390,994.16 - Step 5: Solve for x
x = 46,543,999,390,994.16/8,243,206.80 - Step 6: Final answer
x = 5,646,346.20
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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.