Finding the Fourth Proportional to 28,229,861.26, 38,957,028.06 and 15,670,780.48
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Solution
The fourth proportional to 28,229,861.26, 38,957,028.06 and 15,670,780.48 is: 21,625,576.88
Step by Step Solution
- Step 1: Write the proportion equation
28,229,861.26 : 38,957,028.06 = 15,670,780.48 : x - Step 2: Convert to fraction form
28,229,861.26/38,957,028.06 = 15,670,780.48/x - Step 3: Cross multiply
28,229,861.26x = 38,957,028.06 × 15,670,780.48 - Step 4: Simplify right side
28,229,861.26x = 610,487,034,881,460.38 - Step 5: Solve for x
x = 610,487,034,881,460.38/28,229,861.26 - Step 6: Final answer
x = 21,625,576.88
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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.