Finding the Fourth Proportional to 19,639,232.20, 27,102,981.24 and 10,937,404.80
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Solution
The fourth proportional to 19,639,232.20, 27,102,981.24 and 10,937,404.80 is: 15,094,086.88
Step by Step Solution
- Step 1: Write the proportion equation
19,639,232.20 : 27,102,981.24 = 10,937,404.80 : x - Step 2: Convert to fraction form
19,639,232.20/27,102,981.24 = 10,937,404.80/x - Step 3: Cross multiply
19,639,232.20x = 27,102,981.24 × 10,937,404.80 - Step 4: Simplify right side
19,639,232.20x = 296,436,277,108,685.94 - Step 5: Solve for x
x = 296,436,277,108,685.94/19,639,232.20 - Step 6: Final answer
x = 15,094,086.88
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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.