Finding the Fourth Proportional to 3,886,387.32, 5,363,224.02 and 2,167,619.16
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Solution
The fourth proportional to 3,886,387.32, 5,363,224.02 and 2,167,619.16 is: 2,991,319.75
Step by Step Solution
- Step 1: Write the proportion equation
3,886,387.32 : 5,363,224.02 = 2,167,619.16 : x - Step 2: Convert to fraction form
3,886,387.32/5,363,224.02 = 2,167,619.16/x - Step 3: Cross multiply
3,886,387.32x = 5,363,224.02 × 2,167,619.16 - Step 4: Simplify right side
3,886,387.32x = 11,625,427,145,124.22 - Step 5: Solve for x
x = 11,625,427,145,124.22/3,886,387.32 - Step 6: Final answer
x = 2,991,319.75
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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.