Finding the Fourth Proportional to 2,990,811.10, 4,486,216.65 and 2,187,744.70
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Solution
The fourth proportional to 2,990,811.10, 4,486,216.65 and 2,187,744.70 is: 3,281,617.05
Step by Step Solution
- Step 1: Write the proportion equation
2,990,811.10 : 4,486,216.65 = 2,187,744.70 : x - Step 2: Convert to fraction form
2,990,811.10/4,486,216.65 = 2,187,744.70/x - Step 3: Cross multiply
2,990,811.10x = 4,486,216.65 × 2,187,744.70 - Step 4: Simplify right side
2,990,811.10x = 9,814,696,699,089.26 - Step 5: Solve for x
x = 9,814,696,699,089.26/2,990,811.10 - Step 6: Final answer
x = 3,281,617.05
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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.