Finding the Fourth Proportional to 4,157,963.80, 6,236,945.70 and 1,918,475.80
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Solution
The fourth proportional to 4,157,963.80, 6,236,945.70 and 1,918,475.80 is: 2,877,713.70
Step by Step Solution
- Step 1: Write the proportion equation
4,157,963.80 : 6,236,945.70 = 1,918,475.80 : x - Step 2: Convert to fraction form
4,157,963.80/6,236,945.70 = 1,918,475.80/x - Step 3: Cross multiply
4,157,963.80x = 6,236,945.70 × 1,918,475.80 - Step 4: Simplify right side
4,157,963.80x = 11,965,429,391,364.06 - Step 5: Solve for x
x = 11,965,429,391,364.06/4,157,963.80 - Step 6: Final answer
x = 2,877,713.70
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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.