Finding the Fourth Proportional to 20,273,088.68, 27,976,639.56 and 10,980,427.76
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Solution
The fourth proportional to 20,273,088.68, 27,976,639.56 and 10,980,427.76 is: 15,152,869.62
Step by Step Solution
- Step 1: Write the proportion equation
20,273,088.68 : 27,976,639.56 = 10,980,427.76 : x - Step 2: Convert to fraction form
20,273,088.68/27,976,639.56 = 10,980,427.76/x - Step 3: Cross multiply
20,273,088.68x = 27,976,639.56 × 10,980,427.76 - Step 4: Simplify right side
20,273,088.68x = 307,195,469,656,138.19 - Step 5: Solve for x
x = 307,195,469,656,138.19/20,273,088.68 - Step 6: Final answer
x = 15,152,869.62
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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.