Finding the Fourth Proportional to 14,420,217.20, 19,899,954.60 and 7,894,453.82
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Solution
The fourth proportional to 14,420,217.20, 19,899,954.60 and 7,894,453.82 is: 10,894,376.31
Step by Step Solution
- Step 1: Write the proportion equation
14,420,217.20 : 19,899,954.60 = 7,894,453.82 : x - Step 2: Convert to fraction form
14,420,217.20/19,899,954.60 = 7,894,453.82/x - Step 3: Cross multiply
14,420,217.20x = 19,899,954.60 × 7,894,453.82 - Step 4: Simplify right side
14,420,217.20x = 157,099,272,609,796.59 - Step 5: Solve for x
x = 157,099,272,609,796.59/14,420,217.20 - Step 6: Final answer
x = 10,894,376.31
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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.