Finding the Fourth Proportional to 488,620,322.73, 665,275,220.15 and 487,068,890.99
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Solution
The fourth proportional to 488,620,322.73, 665,275,220.15 and 487,068,890.99 is: 663,162,886.61
Step by Step Solution
- Step 1: Write the proportion equation
488,620,322.73 : 665,275,220.15 = 487,068,890.99 : x - Step 2: Convert to fraction form
488,620,322.73/665,275,220.15 = 487,068,890.99/x - Step 3: Cross multiply
488,620,322.73x = 665,275,220.15 × 487,068,890.99 - Step 4: Simplify right side
488,620,322.73x = 324,034,863,675,826,880 - Step 5: Solve for x
x = 324,034,863,675,826,880/488,620,322.73 - Step 6: Final answer
x = 663,162,886.61
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.