Finding the Fourth Proportional to 5,112,778.88, 7,056,259.84 and 2,937,318.40
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Solution
The fourth proportional to 5,112,778.88, 7,056,259.84 and 2,937,318.40 is: 4,053,858.45
Step by Step Solution
- Step 1: Write the proportion equation
5,112,778.88 : 7,056,259.84 = 2,937,318.40 : x - Step 2: Convert to fraction form
5,112,778.88/7,056,259.84 = 2,937,318.40/x - Step 3: Cross multiply
5,112,778.88x = 7,056,259.84 × 2,937,318.40 - Step 4: Simplify right side
5,112,778.88x = 20,726,481,863,213.05 - Step 5: Solve for x
x = 20,726,481,863,213.05/5,112,778.88 - Step 6: Final answer
x = 4,053,858.45
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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.