Finding the Fourth Proportional to 10,378,854.77, 15,569,767.92 and 3,190,992.19
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Solution
The fourth proportional to 10,378,854.77, 15,569,767.92 and 3,190,992.19 is: 4,786,945.08
Step by Step Solution
- Step 1: Write the proportion equation
10,378,854.77 : 15,569,767.92 = 3,190,992.19 : x - Step 2: Convert to fraction form
10,378,854.77/15,569,767.92 = 3,190,992.19/x - Step 3: Cross multiply
10,378,854.77x = 15,569,767.92 × 3,190,992.19 - Step 4: Simplify right side
10,378,854.77x = 49,683,007,754,983.70 - Step 5: Solve for x
x = 49,683,007,754,983.70/10,378,854.77 - Step 6: Final answer
x = 4,786,945.08
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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.