Finding the Fourth Proportional to 3,155,332.96, 4,353,636.49 and 1,992,381.31
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Solution
The fourth proportional to 3,155,332.96, 4,353,636.49 and 1,992,381.31 is: 2,749,029.69
Step by Step Solution
- Step 1: Write the proportion equation
3,155,332.96 : 4,353,636.49 = 1,992,381.31 : x - Step 2: Convert to fraction form
3,155,332.96/4,353,636.49 = 1,992,381.31/x - Step 3: Cross multiply
3,155,332.96x = 4,353,636.49 × 1,992,381.31 - Step 4: Simplify right side
3,155,332.96x = 8,674,103,973,210.00 - Step 5: Solve for x
x = 8,674,103,973,210.00/3,155,332.96 - Step 6: Final answer
x = 2,749,029.69
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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.