Finding the Fourth Proportional to 5,142,438.48, 7,713,571.86 and 1,251,936.66
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Solution
The fourth proportional to 5,142,438.48, 7,713,571.86 and 1,251,936.66 is: 1,877,884.09
Step by Step Solution
- Step 1: Write the proportion equation
5,142,438.48 : 7,713,571.86 = 1,251,936.66 : x - Step 2: Convert to fraction form
5,142,438.48/7,713,571.86 = 1,251,936.66/x - Step 3: Cross multiply
5,142,438.48x = 7,713,571.86 × 1,251,936.66 - Step 4: Simplify right side
5,142,438.48x = 9,656,903,391,078.39 - Step 5: Solve for x
x = 9,656,903,391,078.39/5,142,438.48 - Step 6: Final answer
x = 1,877,884.09
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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.