Finding the Fourth Proportional to 14,121,515.51, 19,486,131.99 and 7,925,140.97
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Solution
The fourth proportional to 14,121,515.51, 19,486,131.99 and 7,925,140.97 is: 10,935,819.38
Step by Step Solution
- Step 1: Write the proportion equation
14,121,515.51 : 19,486,131.99 = 7,925,140.97 : x - Step 2: Convert to fraction form
14,121,515.51/19,486,131.99 = 7,925,140.97/x - Step 3: Cross multiply
14,121,515.51x = 19,486,131.99 × 7,925,140.97 - Step 4: Simplify right side
14,121,515.51x = 154,430,342,980,776.62 - Step 5: Solve for x
x = 154,430,342,980,776.62/14,121,515.51 - Step 6: Final answer
x = 10,935,819.38
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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.