Finding the Fourth Proportional to 5,448,502.45, 7,518,933.36 and 3,157,991.74
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Solution
The fourth proportional to 5,448,502.45, 7,518,933.36 and 3,157,991.74 is: 4,358,028.59
Step by Step Solution
- Step 1: Write the proportion equation
5,448,502.45 : 7,518,933.36 = 3,157,991.74 : x - Step 2: Convert to fraction form
5,448,502.45/7,518,933.36 = 3,157,991.74/x - Step 3: Cross multiply
5,448,502.45x = 7,518,933.36 × 3,157,991.74 - Step 4: Simplify right side
5,448,502.45x = 23,744,729,444,490.45 - Step 5: Solve for x
x = 23,744,729,444,490.45/5,448,502.45 - Step 6: Final answer
x = 4,358,028.59
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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.