Finding the Fourth Proportional to 11,457,958.31, 15,853,619.79 and 9,990,925.99
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Solution
The fourth proportional to 11,457,958.31, 15,853,619.79 and 9,990,925.99 is: 13,823,784.11
Step by Step Solution
- Step 1: Write the proportion equation
11,457,958.31 : 15,853,619.79 = 9,990,925.99 : x - Step 2: Convert to fraction form
11,457,958.31/15,853,619.79 = 9,990,925.99/x - Step 3: Cross multiply
11,457,958.31x = 15,853,619.79 × 9,990,925.99 - Step 4: Simplify right side
11,457,958.31x = 158,392,341,995,489.34 - Step 5: Solve for x
x = 158,392,341,995,489.34/11,457,958.31 - Step 6: Final answer
x = 13,823,784.11
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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.