Finding the Fourth Proportional to 261,330,265.92, 391,965,539.04 and 69,868,971.84
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Solution
The fourth proportional to 261,330,265.92, 391,965,539.04 and 69,868,971.84 is: 104,795,474.47
Step by Step Solution
- Step 1: Write the proportion equation
261,330,265.92 : 391,965,539.04 = 69,868,971.84 : x - Step 2: Convert to fraction form
261,330,265.92/391,965,539.04 = 69,868,971.84/x - Step 3: Cross multiply
261,330,265.92x = 391,965,539.04 × 69,868,971.84 - Step 4: Simplify right side
261,330,265.92x = 27,386,229,209,436,184 - Step 5: Solve for x
x = 27,386,229,209,436,184/261,330,265.92 - Step 6: Final answer
x = 104,795,474.47
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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.