Finding the Fourth Proportional to 12,634,375.25, 17,436,235.21 and 7,125,740.19
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Solution
The fourth proportional to 12,634,375.25, 17,436,235.21 and 7,125,740.19 is: 9,833,971.17
Step by Step Solution
- Step 1: Write the proportion equation
12,634,375.25 : 17,436,235.21 = 7,125,740.19 : x - Step 2: Convert to fraction form
12,634,375.25/17,436,235.21 = 7,125,740.19/x - Step 3: Cross multiply
12,634,375.25x = 17,436,235.21 × 7,125,740.19 - Step 4: Simplify right side
12,634,375.25x = 124,246,081,980,375.75 - Step 5: Solve for x
x = 124,246,081,980,375.75/12,634,375.25 - Step 6: Final answer
x = 9,833,971.17
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1.5x scale
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.