Finding the Fourth Proportional to 2,951,123.20, 4,421,289.91 and 2,139,497.53
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Solution
The fourth proportional to 2,951,123.20, 4,421,289.91 and 2,139,497.53 is: 3,205,335.12
Step by Step Solution
- Step 1: Write the proportion equation
2,951,123.20 : 4,421,289.91 = 2,139,497.53 : x - Step 2: Convert to fraction form
2,951,123.20/4,421,289.91 = 2,139,497.53/x - Step 3: Cross multiply
2,951,123.20x = 4,421,289.91 × 2,139,497.53 - Step 4: Simplify right side
2,951,123.20x = 9,459,338,809,054.99 - Step 5: Solve for x
x = 9,459,338,809,054.99/2,951,123.20 - Step 6: Final answer
x = 3,205,335.12
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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.