Finding the Fourth Proportional to 38,647,246.44, 53,332,885.71 and 21,243,406.62
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Solution
The fourth proportional to 38,647,246.44, 53,332,885.71 and 21,243,406.62 is: 29,315,728.33
Step by Step Solution
- Step 1: Write the proportion equation
38,647,246.44 : 53,332,885.71 = 21,243,406.62 : x - Step 2: Convert to fraction form
38,647,246.44/53,332,885.71 = 21,243,406.62/x - Step 3: Cross multiply
38,647,246.44x = 53,332,885.71 × 21,243,406.62 - Step 4: Simplify right side
38,647,246.44x = 1,132,972,177,355,517.50 - Step 5: Solve for x
x = 1,132,972,177,355,517.50/38,647,246.44 - Step 6: Final answer
x = 29,315,728.33
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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.