Finding the Fourth Proportional to 108,109,873.16, 149,190,885.58 and 58,549,107.05
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Solution
The fourth proportional to 108,109,873.16, 149,190,885.58 and 58,549,107.05 is: 80,797,367.30
Step by Step Solution
- Step 1: Write the proportion equation
108,109,873.16 : 149,190,885.58 = 58,549,107.05 : x - Step 2: Convert to fraction form
108,109,873.16/149,190,885.58 = 58,549,107.05/x - Step 3: Cross multiply
108,109,873.16x = 149,190,885.58 × 58,549,107.05 - Step 4: Simplify right side
108,109,873.16x = 8,734,993,130,707,722 - Step 5: Solve for x
x = 8,734,993,130,707,722/108,109,873.16 - Step 6: Final answer
x = 80,797,367.30
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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.