Finding the Fourth Proportional to 19,123,371.50, 26,389,582.36 and 10,421,366.54
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Solution
The fourth proportional to 19,123,371.50, 26,389,582.36 and 10,421,366.54 is: 14,381,120.54
Step by Step Solution
- Step 1: Write the proportion equation
19,123,371.50 : 26,389,582.36 = 10,421,366.54 : x - Step 2: Convert to fraction form
19,123,371.50/26,389,582.36 = 10,421,366.54/x - Step 3: Cross multiply
19,123,371.50x = 26,389,582.36 × 10,421,366.54 - Step 4: Simplify right side
19,123,371.50x = 275,015,510,611,078.22 - Step 5: Solve for x
x = 275,015,510,611,078.22/19,123,371.50 - Step 6: Final answer
x = 14,381,120.54
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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.