Finding the Fourth Proportional to 2,990,756.68, 4,127,314.98 and 1,632,639.40
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Solution
The fourth proportional to 2,990,756.68, 4,127,314.98 and 1,632,639.40 is: 2,253,081.00
Step by Step Solution
- Step 1: Write the proportion equation
2,990,756.68 : 4,127,314.98 = 1,632,639.40 : x - Step 2: Convert to fraction form
2,990,756.68/4,127,314.98 = 1,632,639.40/x - Step 3: Cross multiply
2,990,756.68x = 4,127,314.98 × 1,632,639.40 - Step 4: Simplify right side
2,990,756.68x = 6,738,417,052,558.21 - Step 5: Solve for x
x = 6,738,417,052,558.21/2,990,756.68 - Step 6: Final answer
x = 2,253,081.00
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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.