Finding the Fourth Proportional to 7,120,805.16, 9,832,343.07 and 6,576,723.30
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Solution
The fourth proportional to 7,120,805.16, 9,832,343.07 and 6,576,723.30 is: 9,081,079.78
Step by Step Solution
- Step 1: Write the proportion equation
7,120,805.16 : 9,832,343.07 = 6,576,723.30 : x - Step 2: Convert to fraction form
7,120,805.16/9,832,343.07 = 6,576,723.30/x - Step 3: Cross multiply
7,120,805.16x = 9,832,343.07 × 6,576,723.30 - Step 4: Simplify right side
7,120,805.16x = 64,664,599,762,062.53 - Step 5: Solve for x
x = 64,664,599,762,062.53/7,120,805.16 - Step 6: Final answer
x = 9,081,079.78
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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.