Finding the Fourth Proportional to 20,197,812.30, 30,307,216.05 and 8,839,409.10
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Solution
The fourth proportional to 20,197,812.30, 30,307,216.05 and 8,839,409.10 is: 13,263,707.84
Step by Step Solution
- Step 1: Write the proportion equation
20,197,812.30 : 30,307,216.05 = 8,839,409.10 : x - Step 2: Convert to fraction form
20,197,812.30/30,307,216.05 = 8,839,409.10/x - Step 3: Cross multiply
20,197,812.30x = 30,307,216.05 × 8,839,409.10 - Step 4: Simplify right side
20,197,812.30x = 267,897,881,348,036.06 - Step 5: Solve for x
x = 267,897,881,348,036.06/20,197,812.30 - Step 6: Final answer
x = 13,263,707.84
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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.