Finding the Fourth Proportional to 31,303,489.17, 43,192,346.16 and 18,072,436.81
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Solution
The fourth proportional to 31,303,489.17, 43,192,346.16 and 18,072,436.81 is: 24,936,228.11
Step by Step Solution
- Step 1: Write the proportion equation
31,303,489.17 : 43,192,346.16 = 18,072,436.81 : x - Step 2: Convert to fraction form
31,303,489.17/43,192,346.16 = 18,072,436.81/x - Step 3: Cross multiply
31,303,489.17x = 43,192,346.16 × 18,072,436.81 - Step 4: Simplify right side
31,303,489.17x = 780,590,946,544,265.25 - Step 5: Solve for x
x = 780,590,946,544,265.25/31,303,489.17 - Step 6: Final answer
x = 24,936,228.11
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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.