Finding the Fourth Proportional to 21,857,461.84, 30,163,717.18 and 11,934,737.95
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Solution
The fourth proportional to 21,857,461.84, 30,163,717.18 and 11,934,737.95 is: 16,470,167.62
Step by Step Solution
- Step 1: Write the proportion equation
21,857,461.84 : 30,163,717.18 = 11,934,737.95 : x - Step 2: Convert to fraction form
21,857,461.84/30,163,717.18 = 11,934,737.95/x - Step 3: Cross multiply
21,857,461.84x = 30,163,717.18 × 11,934,737.95 - Step 4: Simplify right side
21,857,461.84x = 359,996,060,299,082.19 - Step 5: Solve for x
x = 359,996,060,299,082.19/21,857,461.84 - Step 6: Final answer
x = 16,470,167.62
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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.