Finding the Fourth Proportional to 28,787,681.33, 39,726,942.68 and 16,397,770.02
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Solution
The fourth proportional to 28,787,681.33, 39,726,942.68 and 16,397,770.02 is: 22,628,889.84
Step by Step Solution
- Step 1: Write the proportion equation
28,787,681.33 : 39,726,942.68 = 16,397,770.02 : x - Step 2: Convert to fraction form
28,787,681.33/39,726,942.68 = 16,397,770.02/x - Step 3: Cross multiply
28,787,681.33x = 39,726,942.68 × 16,397,770.02 - Step 4: Simplify right side
28,787,681.33x = 651,433,269,582,373.50 - Step 5: Solve for x
x = 651,433,269,582,373.50/28,787,681.33 - Step 6: Final answer
x = 22,628,889.84
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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.