Finding the Fourth Proportional to 28,787,687.51, 39,726,951.21 and 16,397,776.18
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Solution
The fourth proportional to 28,787,687.51, 39,726,951.21 and 16,397,776.18 is: 22,628,898.35
Step by Step Solution
- Step 1: Write the proportion equation
28,787,687.51 : 39,726,951.21 = 16,397,776.18 : x - Step 2: Convert to fraction form
28,787,687.51/39,726,951.21 = 16,397,776.18/x - Step 3: Cross multiply
28,787,687.51x = 39,726,951.21 × 16,397,776.18 - Step 4: Simplify right side
28,787,687.51x = 651,433,654,255,360.12 - Step 5: Solve for x
x = 651,433,654,255,360.12/28,787,687.51 - Step 6: Final answer
x = 22,628,898.35
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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.