Finding the Fourth Proportional to 51,558,617.85, 71,149,473.81 and 28,353,744.87
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Solution
The fourth proportional to 51,558,617.85, 71,149,473.81 and 28,353,744.87 is: 39,127,387.66
Step by Step Solution
- Step 1: Write the proportion equation
51,558,617.85 : 71,149,473.81 = 28,353,744.87 : x - Step 2: Convert to fraction form
51,558,617.85/71,149,473.81 = 28,353,744.87/x - Step 3: Cross multiply
51,558,617.85x = 71,149,473.81 × 28,353,744.87 - Step 4: Simplify right side
51,558,617.85x = 2,017,354,028,043,487 - Step 5: Solve for x
x = 2,017,354,028,043,487/51,558,617.85 - Step 6: Final answer
x = 39,127,387.66
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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.