Finding the Fourth Proportional to 18,800,641.09, 28,201,058.94 and 8,558,338.02
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Solution
The fourth proportional to 18,800,641.09, 28,201,058.94 and 8,558,338.02 is: 12,837,551.32
Step by Step Solution
- Step 1: Write the proportion equation
18,800,641.09 : 28,201,058.94 = 8,558,338.02 : x - Step 2: Convert to fraction form
18,800,641.09/28,201,058.94 = 8,558,338.02/x - Step 3: Cross multiply
18,800,641.09x = 28,201,058.94 × 8,558,338.02 - Step 4: Simplify right side
18,800,641.09x = 241,354,194,789,457.62 - Step 5: Solve for x
x = 241,354,194,789,457.62/18,800,641.09 - Step 6: Final answer
x = 12,837,551.32
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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.