Finding the Fourth Proportional to 13,694,904.28, 18,898,939.02 and 7,893,646.84
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Solution
The fourth proportional to 13,694,904.28, 18,898,939.02 and 7,893,646.84 is: 10,893,215.99
Step by Step Solution
- Step 1: Write the proportion equation
13,694,904.28 : 18,898,939.02 = 7,893,646.84 : x - Step 2: Convert to fraction form
13,694,904.28/18,898,939.02 = 7,893,646.84/x - Step 3: Cross multiply
13,694,904.28x = 18,898,939.02 × 7,893,646.84 - Step 4: Simplify right side
13,694,904.28x = 149,181,550,274,575.69 - Step 5: Solve for x
x = 149,181,550,274,575.69/13,694,904.28 - Step 6: Final answer
x = 10,893,215.99
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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.