Finding the Fourth Proportional to 28,629,211.68, 39,509,404.56 and 16,408,432.80
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Solution
The fourth proportional to 28,629,211.68, 39,509,404.56 and 16,408,432.80 is: 22,644,263.38
Step by Step Solution
- Step 1: Write the proportion equation
28,629,211.68 : 39,509,404.56 = 16,408,432.80 : x - Step 2: Convert to fraction form
28,629,211.68/39,509,404.56 = 16,408,432.80/x - Step 3: Cross multiply
28,629,211.68x = 39,509,404.56 × 16,408,432.80 - Step 4: Simplify right side
28,629,211.68x = 648,287,409,690,773.62 - Step 5: Solve for x
x = 648,287,409,690,773.62/28,629,211.68 - Step 6: Final answer
x = 22,644,263.38
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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.