Finding the Fourth Proportional to 22,284,479.45, 30,749,740.61 and 12,989,723.99
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Solution
The fourth proportional to 22,284,479.45, 30,749,740.61 and 12,989,723.99 is: 17,924,163.05
Step by Step Solution
- Step 1: Write the proportion equation
22,284,479.45 : 30,749,740.61 = 12,989,723.99 : x - Step 2: Convert to fraction form
22,284,479.45/30,749,740.61 = 12,989,723.99/x - Step 3: Cross multiply
22,284,479.45x = 30,749,740.61 × 12,989,723.99 - Step 4: Simplify right side
22,284,479.45x = 399,430,643,166,719.81 - Step 5: Solve for x
x = 399,430,643,166,719.81/22,284,479.45 - Step 6: Final answer
x = 17,924,163.05
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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.