Finding the Fourth Proportional to 3,118,923.72, 4,680,251.82 and 2,865,115.08
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Solution
The fourth proportional to 3,118,923.72, 4,680,251.82 and 2,865,115.08 is: 4,299,386.99
Step by Step Solution
- Step 1: Write the proportion equation
3,118,923.72 : 4,680,251.82 = 2,865,115.08 : x - Step 2: Convert to fraction form
3,118,923.72/4,680,251.82 = 2,865,115.08/x - Step 3: Cross multiply
3,118,923.72x = 4,680,251.82 × 2,865,115.08 - Step 4: Simplify right side
3,118,923.72x = 13,409,460,067,679.45 - Step 5: Solve for x
x = 13,409,460,067,679.45/3,118,923.72 - Step 6: Final answer
x = 4,299,386.99
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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.