Finding the Fourth Proportional to 7,939,381.28, 11,909,782.28 and 3,081,574
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Solution
The fourth proportional to 7,939,381.28, 11,909,782.28 and 3,081,574 is: 4,622,636.72
Step by Step Solution
- Step 1: Write the proportion equation
7,939,381.28 : 11,909,782.28 = 3,081,574 : x - Step 2: Convert to fraction form
7,939,381.28/11,909,782.28 = 3,081,574/x - Step 3: Cross multiply
7,939,381.28x = 11,909,782.28 × 3,081,574 - Step 4: Simplify right side
7,939,381.28x = 36,700,875,419,708.72 - Step 5: Solve for x
x = 36,700,875,419,708.72/7,939,381.28 - Step 6: Final answer
x = 4,622,636.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.