Finding the Fourth Proportional to 5,756,812.74, 7,944,713.01 and 3,178,485.54
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Solution
The fourth proportional to 5,756,812.74, 7,944,713.01 and 3,178,485.54 is: 4,386,481.99
Step by Step Solution
- Step 1: Write the proportion equation
5,756,812.74 : 7,944,713.01 = 3,178,485.54 : x - Step 2: Convert to fraction form
5,756,812.74/7,944,713.01 = 3,178,485.54/x - Step 3: Cross multiply
5,756,812.74x = 7,944,713.01 × 3,178,485.54 - Step 4: Simplify right side
5,756,812.74x = 25,252,155,421,734.88 - Step 5: Solve for x
x = 25,252,155,421,734.88/5,756,812.74 - Step 6: Final answer
x = 4,386,481.99
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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.