Finding the Fourth Proportional to 21,080,966.74, 29,088,516.81 and 11,910,263.38
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Solution
The fourth proportional to 21,080,966.74, 29,088,516.81 and 11,910,263.38 is: 16,434,345.77
Step by Step Solution
- Step 1: Write the proportion equation
21,080,966.74 : 29,088,516.81 = 11,910,263.38 : x - Step 2: Convert to fraction form
21,080,966.74/29,088,516.81 = 11,910,263.38/x - Step 3: Cross multiply
21,080,966.74x = 29,088,516.81 × 11,910,263.38 - Step 4: Simplify right side
21,080,966.74x = 346,451,896,540,657.44 - Step 5: Solve for x
x = 346,451,896,540,657.44/21,080,966.74 - Step 6: Final answer
x = 16,434,345.77
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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.