Finding the Fourth Proportional to 7,954,378.16, 10,976,732.90 and 4,862,079.08
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Solution
The fourth proportional to 7,954,378.16, 10,976,732.90 and 4,862,079.08 is: 6,709,480.28
Step by Step Solution
- Step 1: Write the proportion equation
7,954,378.16 : 10,976,732.90 = 4,862,079.08 : x - Step 2: Convert to fraction form
7,954,378.16/10,976,732.90 = 4,862,079.08/x - Step 3: Cross multiply
7,954,378.16x = 10,976,732.90 × 4,862,079.08 - Step 4: Simplify right side
7,954,378.16x = 53,369,743,439,434.76 - Step 5: Solve for x
x = 53,369,743,439,434.76/7,954,378.16 - Step 6: Final answer
x = 6,709,480.28
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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.