Finding the Fourth Proportional to 18,746,857.08, 28,119,741.30 and 5,968,128.60
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Solution
The fourth proportional to 18,746,857.08, 28,119,741.30 and 5,968,128.60 is: 8,952,019.61
Step by Step Solution
- Step 1: Write the proportion equation
18,746,857.08 : 28,119,741.30 = 5,968,128.60 : x - Step 2: Convert to fraction form
18,746,857.08/28,119,741.30 = 5,968,128.60/x - Step 3: Cross multiply
18,746,857.08x = 28,119,741.30 × 5,968,128.60 - Step 4: Simplify right side
18,746,857.08x = 167,822,232,277,131.19 - Step 5: Solve for x
x = 167,822,232,277,131.19/18,746,857.08 - Step 6: Final answer
x = 8,952,019.61
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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.