Finding the Fourth Proportional to 21,458,439.01, 29,613,424.58 and 12,292,853.23
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Solution
The fourth proportional to 21,458,439.01, 29,613,424.58 and 12,292,853.23 is: 16,964,583.58
Step by Step Solution
- Step 1: Write the proportion equation
21,458,439.01 : 29,613,424.58 = 12,292,853.23 : x - Step 2: Convert to fraction form
21,458,439.01/29,613,424.58 = 12,292,853.23/x - Step 3: Cross multiply
21,458,439.01x = 29,613,424.58 × 12,292,853.23 - Step 4: Simplify right side
21,458,439.01x = 364,033,481,999,614.38 - Step 5: Solve for x
x = 364,033,481,999,614.38/21,458,439.01 - Step 6: Final answer
x = 16,964,583.58
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1.5x scale
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.