Finding the Fourth Proportional to 5,707,184.33, 7,875,912.48 and 3,128,809.79
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Solution
The fourth proportional to 5,707,184.33, 7,875,912.48 and 3,128,809.79 is: 4,317,756.47
Step by Step Solution
- Step 1: Write the proportion equation
5,707,184.33 : 7,875,912.48 = 3,128,809.79 : x - Step 2: Convert to fraction form
5,707,184.33/7,875,912.48 = 3,128,809.79/x - Step 3: Cross multiply
5,707,184.33x = 7,875,912.48 × 3,128,809.79 - Step 4: Simplify right side
5,707,184.33x = 24,642,232,072,607.18 - Step 5: Solve for x
x = 24,642,232,072,607.18/5,707,184.33 - Step 6: Final answer
x = 4,317,756.47
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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.