Finding the Fourth Proportional to 13,053,034.20, 19,579,551.30 and 8,266,128.60
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Solution
The fourth proportional to 13,053,034.20, 19,579,551.30 and 8,266,128.60 is: 12,399,192.90
Step by Step Solution
- Step 1: Write the proportion equation
13,053,034.20 : 19,579,551.30 = 8,266,128.60 : x - Step 2: Convert to fraction form
13,053,034.20/19,579,551.30 = 8,266,128.60/x - Step 3: Cross multiply
13,053,034.20x = 19,579,551.30 × 8,266,128.60 - Step 4: Simplify right side
13,053,034.20x = 161,847,088,976,097.19 - Step 5: Solve for x
x = 161,847,088,976,097.19/13,053,034.20 - Step 6: Final answer
x = 12,399,192.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.