Finding the Fourth Proportional to 7,232,793.18, 9,981,867.24 and 3,970,160.58
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Solution
The fourth proportional to 7,232,793.18, 9,981,867.24 and 3,970,160.58 is: 5,479,157.89
Step by Step Solution
- Step 1: Write the proportion equation
7,232,793.18 : 9,981,867.24 = 3,970,160.58 : x - Step 2: Convert to fraction form
7,232,793.18/9,981,867.24 = 3,970,160.58/x - Step 3: Cross multiply
7,232,793.18x = 9,981,867.24 × 3,970,160.58 - Step 4: Simplify right side
7,232,793.18x = 39,629,615,831,041.40 - Step 5: Solve for x
x = 39,629,615,831,041.40/7,232,793.18 - Step 6: Final answer
x = 5,479,157.89
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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.