Finding the Fourth Proportional to 21,453,687.48, 29,601,853.74 and 12,034,791.48
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Solution
The fourth proportional to 21,453,687.48, 29,601,853.74 and 12,034,791.48 is: 16,605,636.56
Step by Step Solution
- Step 1: Write the proportion equation
21,453,687.48 : 29,601,853.74 = 12,034,791.48 : x - Step 2: Convert to fraction form
21,453,687.48/29,601,853.74 = 12,034,791.48/x - Step 3: Cross multiply
21,453,687.48x = 29,601,853.74 × 12,034,791.48 - Step 4: Simplify right side
21,453,687.48x = 356,252,137,182,358.12 - Step 5: Solve for x
x = 356,252,137,182,358.12/21,453,687.48 - Step 6: Final answer
x = 16,605,636.56
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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.