Finding the Fourth Proportional to 7,745,121.28, 10,687,937.60 and 4,260,238.92
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Solution
The fourth proportional to 7,745,121.28, 10,687,937.60 and 4,260,238.92 is: 5,878,948.32
Step by Step Solution
- Step 1: Write the proportion equation
7,745,121.28 : 10,687,937.60 = 4,260,238.92 : x - Step 2: Convert to fraction form
7,745,121.28/10,687,937.60 = 4,260,238.92/x - Step 3: Cross multiply
7,745,121.28x = 10,687,937.60 × 4,260,238.92 - Step 4: Simplify right side
7,745,121.28x = 45,533,167,738,051.39 - Step 5: Solve for x
x = 45,533,167,738,051.39/7,745,121.28 - Step 6: Final answer
x = 5,878,948.32
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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.