Finding the Fourth Proportional to 11,431,602.50, 15,775,845.80 and 6,470,043.53
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Solution
The fourth proportional to 11,431,602.50, 15,775,845.80 and 6,470,043.53 is: 8,928,792.70
Step by Step Solution
- Step 1: Write the proportion equation
11,431,602.50 : 15,775,845.80 = 6,470,043.53 : x - Step 2: Convert to fraction form
11,431,602.50/15,775,845.80 = 6,470,043.53/x - Step 3: Cross multiply
11,431,602.50x = 15,775,845.80 × 6,470,043.53 - Step 4: Simplify right side
11,431,602.50x = 102,070,408,937,338.23 - Step 5: Solve for x
x = 102,070,408,937,338.23/11,431,602.50 - Step 6: Final answer
x = 8,928,792.70
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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.