Finding the Fourth Proportional to 5,139,360.96, 7,092,079.20 and 2,816,239.68
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Solution
The fourth proportional to 5,139,360.96, 7,092,079.20 and 2,816,239.68 is: 3,886,279.83
Step by Step Solution
- Step 1: Write the proportion equation
5,139,360.96 : 7,092,079.20 = 2,816,239.68 : x - Step 2: Convert to fraction form
5,139,360.96/7,092,079.20 = 2,816,239.68/x - Step 3: Cross multiply
5,139,360.96x = 7,092,079.20 × 2,816,239.68 - Step 4: Simplify right side
5,139,360.96x = 19,972,994,856,742.66 - Step 5: Solve for x
x = 19,972,994,856,742.66/5,139,360.96 - Step 6: Final answer
x = 3,886,279.83
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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.