Finding the Fourth Proportional to 12,645,539.79, 17,451,267.33 and 7,749,815.96
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Solution
The fourth proportional to 12,645,539.79, 17,451,267.33 and 7,749,815.96 is: 10,695,004.90
Step by Step Solution
- Step 1: Write the proportion equation
12,645,539.79 : 17,451,267.33 = 7,749,815.96 : x - Step 2: Convert to fraction form
12,645,539.79/17,451,267.33 = 7,749,815.96/x - Step 3: Cross multiply
12,645,539.79x = 17,451,267.33 × 7,749,815.96 - Step 4: Simplify right side
12,645,539.79x = 135,244,109,989,004.23 - Step 5: Solve for x
x = 135,244,109,989,004.23/12,645,539.79 - Step 6: Final answer
x = 10,695,004.90
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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.