Finding the Fourth Proportional to 13,389,862.29, 18,480,029.97 and 8,165,901.15
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Solution
The fourth proportional to 13,389,862.29, 18,480,029.97 and 8,165,901.15 is: 11,270,175.50
Step by Step Solution
- Step 1: Write the proportion equation
13,389,862.29 : 18,480,029.97 = 8,165,901.15 : x - Step 2: Convert to fraction form
13,389,862.29/18,480,029.97 = 8,165,901.15/x - Step 3: Cross multiply
13,389,862.29x = 18,480,029.97 × 8,165,901.15 - Step 4: Simplify right side
13,389,862.29x = 150,906,097,984,057.47 - Step 5: Solve for x
x = 150,906,097,984,057.47/13,389,862.29 - Step 6: Final answer
x = 11,270,175.50
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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.