Finding the Fourth Proportional to 10,639,452.97, 15,961,421.13 and 3,450,426.31
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Solution
The fourth proportional to 10,639,452.97, 15,961,421.13 and 3,450,426.31 is: 5,176,366.45
Step by Step Solution
- Step 1: Write the proportion equation
10,639,452.97 : 15,961,421.13 = 3,450,426.31 : x - Step 2: Convert to fraction form
10,639,452.97/15,961,421.13 = 3,450,426.31/x - Step 3: Cross multiply
10,639,452.97x = 15,961,421.13 × 3,450,426.31 - Step 4: Simplify right side
10,639,452.97x = 55,073,707,411,941.94 - Step 5: Solve for x
x = 55,073,707,411,941.94/10,639,452.97 - Step 6: Final answer
x = 5,176,366.45
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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.