Finding the Fourth Proportional to 5,165,917.68, 7,129,031.98 and 2,843,077.64
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Solution
The fourth proportional to 5,165,917.68, 7,129,031.98 and 2,843,077.64 is: 3,923,483.24
Step by Step Solution
- Step 1: Write the proportion equation
5,165,917.68 : 7,129,031.98 = 2,843,077.64 : x - Step 2: Convert to fraction form
5,165,917.68/7,129,031.98 = 2,843,077.64/x - Step 3: Cross multiply
5,165,917.68x = 7,129,031.98 × 2,843,077.64 - Step 4: Simplify right side
5,165,917.68x = 20,268,391,427,897.81 - Step 5: Solve for x
x = 20,268,391,427,897.81/5,165,917.68 - Step 6: Final answer
x = 3,923,483.24
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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.