Finding the Fourth Proportional to 12,473,379.80, 18,696,072.90 and 7,084,611.80
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Solution
The fourth proportional to 12,473,379.80, 18,696,072.90 and 7,084,611.80 is: 10,618,967.82
Step by Step Solution
- Step 1: Write the proportion equation
12,473,379.80 : 18,696,072.90 = 7,084,611.80 : x - Step 2: Convert to fraction form
12,473,379.80/18,696,072.90 = 7,084,611.80/x - Step 3: Cross multiply
12,473,379.80x = 18,696,072.90 × 7,084,611.80 - Step 4: Simplify right side
12,473,379.80x = 132,454,418,681,000.20 - Step 5: Solve for x
x = 132,454,418,681,000.20/12,473,379.80 - Step 6: Final answer
x = 10,618,967.82
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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.