Finding the Fourth Proportional to 7,720,071.09, 11,576,742.30 and 2,601,547.08
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Solution
The fourth proportional to 7,720,071.09, 11,576,742.30 and 2,601,547.08 is: 3,901,186.89
Step by Step Solution
- Step 1: Write the proportion equation
7,720,071.09 : 11,576,742.30 = 2,601,547.08 : x - Step 2: Convert to fraction form
7,720,071.09/11,576,742.30 = 2,601,547.08/x - Step 3: Cross multiply
7,720,071.09x = 11,576,742.30 × 2,601,547.08 - Step 4: Simplify right side
7,720,071.09x = 30,117,440,126,477.49 - Step 5: Solve for x
x = 30,117,440,126,477.49/7,720,071.09 - Step 6: Final answer
x = 3,901,186.89
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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.