Finding the Fourth Proportional to 5,323,129.48, 7,986,981.66 and 1,729,997.56
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Solution
The fourth proportional to 5,323,129.48, 7,986,981.66 and 1,729,997.56 is: 2,595,739.75
Step by Step Solution
- Step 1: Write the proportion equation
5,323,129.48 : 7,986,981.66 = 1,729,997.56 : x - Step 2: Convert to fraction form
5,323,129.48/7,986,981.66 = 1,729,997.56/x - Step 3: Cross multiply
5,323,129.48x = 7,986,981.66 × 1,729,997.56 - Step 4: Simplify right side
5,323,129.48x = 13,817,458,783,564.75 - Step 5: Solve for x
x = 13,817,458,783,564.75/5,323,129.48 - Step 6: Final answer
x = 2,595,739.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.