Finding the Fourth Proportional to 28,733,167.04, 39,651,760.12 and 15,680,425.98
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Solution
The fourth proportional to 28,733,167.04, 39,651,760.12 and 15,680,425.98 is: 21,638,982.18
Step by Step Solution
- Step 1: Write the proportion equation
28,733,167.04 : 39,651,760.12 = 15,680,425.98 : x - Step 2: Convert to fraction form
28,733,167.04/39,651,760.12 = 15,680,425.98/x - Step 3: Cross multiply
28,733,167.04x = 39,651,760.12 × 15,680,425.98 - Step 4: Simplify right side
28,733,167.04x = 621,756,489,538,375.88 - Step 5: Solve for x
x = 621,756,489,538,375.88/28,733,167.04 - Step 6: Final answer
x = 21,638,982.18
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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.