Finding the Fourth Proportional to 3,895,586.32, 5,375,936.14 and 2,176,779.28
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Solution
The fourth proportional to 3,895,586.32, 5,375,936.14 and 2,176,779.28 is: 3,003,970.50
Step by Step Solution
- Step 1: Write the proportion equation
3,895,586.32 : 5,375,936.14 = 2,176,779.28 : x - Step 2: Convert to fraction form
3,895,586.32/5,375,936.14 = 2,176,779.28/x - Step 3: Cross multiply
3,895,586.32x = 5,375,936.14 × 2,176,779.28 - Step 4: Simplify right side
3,895,586.32x = 11,702,226,400,155.18 - Step 5: Solve for x
x = 11,702,226,400,155.18/3,895,586.32 - Step 6: Final answer
x = 3,003,970.50
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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.