Finding the Fourth Proportional to 14,991,097.51, 20,687,761.14 and 8,115,563.17
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Solution
The fourth proportional to 14,991,097.51, 20,687,761.14 and 8,115,563.17 is: 11,199,502.39
Step by Step Solution
- Step 1: Write the proportion equation
14,991,097.51 : 20,687,761.14 = 8,115,563.17 : x - Step 2: Convert to fraction form
14,991,097.51/20,687,761.14 = 8,115,563.17/x - Step 3: Cross multiply
14,991,097.51x = 20,687,761.14 × 8,115,563.17 - Step 4: Simplify right side
14,991,097.51x = 167,892,832,274,102.41 - Step 5: Solve for x
x = 167,892,832,274,102.41/14,991,097.51 - Step 6: Final answer
x = 11,199,502.39
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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.