Finding the Fourth Proportional to 38,469,766.19, 53,086,682.97 and 21,065,811.53
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Solution
The fourth proportional to 38,469,766.19, 53,086,682.97 and 21,065,811.53 is: 29,069,946.84
Step by Step Solution
- Step 1: Write the proportion equation
38,469,766.19 : 53,086,682.97 = 21,065,811.53 : x - Step 2: Convert to fraction form
38,469,766.19/53,086,682.97 = 21,065,811.53/x - Step 3: Cross multiply
38,469,766.19x = 53,086,682.97 × 21,065,811.53 - Step 4: Simplify right side
38,469,766.19x = 1,118,314,057,933,447.12 - Step 5: Solve for x
x = 1,118,314,057,933,447.12/38,469,766.19 - Step 6: Final answer
x = 29,069,946.84
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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.