Finding the Fourth Proportional to 19,666,106.70, 27,139,340.97 and 10,964,821.02
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Solution
The fourth proportional to 19,666,106.70, 27,139,340.97 and 10,964,821.02 is: 15,131,516.41
Step by Step Solution
- Step 1: Write the proportion equation
19,666,106.70 : 27,139,340.97 = 10,964,821.02 : x - Step 2: Convert to fraction form
19,666,106.70/27,139,340.97 = 10,964,821.02/x - Step 3: Cross multiply
19,666,106.70x = 27,139,340.97 × 10,964,821.02 - Step 4: Simplify right side
19,666,106.70x = 297,578,016,336,803.19 - Step 5: Solve for x
x = 297,578,016,336,803.19/19,666,106.70 - Step 6: Final answer
x = 15,131,516.41
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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.