Finding the Fourth Proportional to 5,269,841.68, 7,272,386.40 and 2,855,393.68
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Solution
The fourth proportional to 5,269,841.68, 7,272,386.40 and 2,855,393.68 is: 3,940,445.92
Step by Step Solution
- Step 1: Write the proportion equation
5,269,841.68 : 7,272,386.40 = 2,855,393.68 : x - Step 2: Convert to fraction form
5,269,841.68/7,272,386.40 = 2,855,393.68/x - Step 3: Cross multiply
5,269,841.68x = 7,272,386.40 × 2,855,393.68 - Step 4: Simplify right side
5,269,841.68x = 20,765,526,165,077.95 - Step 5: Solve for x
x = 20,765,526,165,077.95/5,269,841.68 - Step 6: Final answer
x = 3,940,445.92
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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.