Finding the Fourth Proportional to 25,692,690.76, 38,523,644.80 and 8,177,682.49
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Solution
The fourth proportional to 25,692,690.76, 38,523,644.80 and 8,177,682.49 is: 12,261,624.86
Step by Step Solution
- Step 1: Write the proportion equation
25,692,690.76 : 38,523,644.80 = 8,177,682.49 : x - Step 2: Convert to fraction form
25,692,690.76/38,523,644.80 = 8,177,682.49/x - Step 3: Cross multiply
25,692,690.76x = 38,523,644.80 × 8,177,682.49 - Step 4: Simplify right side
25,692,690.76x = 315,034,135,677,881.19 - Step 5: Solve for x
x = 315,034,135,677,881.19/25,692,690.76 - Step 6: Final answer
x = 12,261,624.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.