Finding the Fourth Proportional to 10,867,715.12, 14,991,201.78 and 6,786,248.24
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Solution
The fourth proportional to 10,867,715.12, 14,991,201.78 and 6,786,248.24 is: 9,361,122.88
Step by Step Solution
- Step 1: Write the proportion equation
10,867,715.12 : 14,991,201.78 = 6,786,248.24 : x - Step 2: Convert to fraction form
10,867,715.12/14,991,201.78 = 6,786,248.24/x - Step 3: Cross multiply
10,867,715.12x = 14,991,201.78 × 6,786,248.24 - Step 4: Simplify right side
10,867,715.12x = 101,734,016,695,009.86 - Step 5: Solve for x
x = 101,734,016,695,009.86/10,867,715.12 - Step 6: Final answer
x = 9,361,122.88
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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.