Finding the Fourth Proportional to 74,331,961.98, 102,581,021.82 and 50,859,730.92
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Solution
The fourth proportional to 74,331,961.98, 102,581,021.82 and 50,859,730.92 is: 70,188,422.70
Step by Step Solution
- Step 1: Write the proportion equation
74,331,961.98 : 102,581,021.82 = 50,859,730.92 : x - Step 2: Convert to fraction form
74,331,961.98/102,581,021.82 = 50,859,730.92/x - Step 3: Cross multiply
74,331,961.98x = 102,581,021.82 × 50,859,730.92 - Step 4: Simplify right side
74,331,961.98x = 5,217,243,167,263,848 - Step 5: Solve for x
x = 5,217,243,167,263,848/74,331,961.98 - Step 6: Final answer
x = 70,188,422.70
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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.