Finding the Fourth Proportional to 8,487,511.80, 12,731,271.75 and 2,807,736.09
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Solution
The fourth proportional to 8,487,511.80, 12,731,271.75 and 2,807,736.09 is: 4,211,605.47
Step by Step Solution
- Step 1: Write the proportion equation
8,487,511.80 : 12,731,271.75 = 2,807,736.09 : x - Step 2: Convert to fraction form
8,487,511.80/12,731,271.75 = 2,807,736.09/x - Step 3: Cross multiply
8,487,511.80x = 12,731,271.75 × 2,807,736.09 - Step 4: Simplify right side
8,487,511.80x = 35,746,051,164,072.45 - Step 5: Solve for x
x = 35,746,051,164,072.45/8,487,511.80 - Step 6: Final answer
x = 4,211,605.47
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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.