Finding the Fourth Proportional to 3,951,718.28, 5,453,376.76 and 2,140,882.28
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Solution
The fourth proportional to 3,951,718.28, 5,453,376.76 and 2,140,882.28 is: 2,954,420.54
Step by Step Solution
- Step 1: Write the proportion equation
3,951,718.28 : 5,453,376.76 = 2,140,882.28 : x - Step 2: Convert to fraction form
3,951,718.28/5,453,376.76 = 2,140,882.28/x - Step 3: Cross multiply
3,951,718.28x = 5,453,376.76 × 2,140,882.28 - Step 4: Simplify right side
3,951,718.28x = 11,675,037,671,647.81 - Step 5: Solve for x
x = 11,675,037,671,647.81/3,951,718.28 - Step 6: Final answer
x = 2,954,420.54
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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.