Finding the Fourth Proportional to 13,476,908.70, 20,201,584.95 and 6,642,971.10
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Solution
The fourth proportional to 13,476,908.70, 20,201,584.95 and 6,642,971.10 is: 9,957,665.22
Step by Step Solution
- Step 1: Write the proportion equation
13,476,908.70 : 20,201,584.95 = 6,642,971.10 : x - Step 2: Convert to fraction form
13,476,908.70/20,201,584.95 = 6,642,971.10/x - Step 3: Cross multiply
13,476,908.70x = 20,201,584.95 × 6,642,971.10 - Step 4: Simplify right side
13,476,908.70x = 134,198,544,997,044.94 - Step 5: Solve for x
x = 134,198,544,997,044.94/13,476,908.70 - Step 6: Final answer
x = 9,957,665.22
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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.