Finding the Fourth Proportional to 20,862,660.17, 28,792,194.60 and 11,573,225.27
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Solution
The fourth proportional to 20,862,660.17, 28,792,194.60 and 11,573,225.27 is: 15,972,006.99
Step by Step Solution
- Step 1: Write the proportion equation
20,862,660.17 : 28,792,194.60 = 11,573,225.27 : x - Step 2: Convert to fraction form
20,862,660.17/28,792,194.60 = 11,573,225.27/x - Step 3: Cross multiply
20,862,660.17x = 28,792,194.60 × 11,573,225.27 - Step 4: Simplify right side
20,862,660.17x = 333,218,553,979,516.62 - Step 5: Solve for x
x = 333,218,553,979,516.62/20,862,660.17 - Step 6: Final answer
x = 15,972,006.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.