Finding the Fourth Proportional to 3,153,108.96, 4,349,639.52 and 1,991,134.08
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Solution
The fourth proportional to 3,153,108.96, 4,349,639.52 and 1,991,134.08 is: 2,746,722.55
Step by Step Solution
- Step 1: Write the proportion equation
3,153,108.96 : 4,349,639.52 = 1,991,134.08 : x - Step 2: Convert to fraction form
3,153,108.96/4,349,639.52 = 1,991,134.08/x - Step 3: Cross multiply
3,153,108.96x = 4,349,639.52 × 1,991,134.08 - Step 4: Simplify right side
3,153,108.96x = 8,660,715,483,986.84 - Step 5: Solve for x
x = 8,660,715,483,986.84/3,153,108.96 - Step 6: Final answer
x = 2,746,722.55
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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.