Finding the Fourth Proportional to 4,212,853.44, 5,813,713.80 and 2,279,108.40
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Solution
The fourth proportional to 4,212,853.44, 5,813,713.80 and 2,279,108.40 is: 3,145,156.64
Step by Step Solution
- Step 1: Write the proportion equation
4,212,853.44 : 5,813,713.80 = 2,279,108.40 : x - Step 2: Convert to fraction form
4,212,853.44/5,813,713.80 = 2,279,108.40/x - Step 3: Cross multiply
4,212,853.44x = 5,813,713.80 × 2,279,108.40 - Step 4: Simplify right side
4,212,853.44x = 13,250,083,956,775.92 - Step 5: Solve for x
x = 13,250,083,956,775.92/4,212,853.44 - Step 6: Final answer
x = 3,145,156.64
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1.5x scale
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.