Finding the Fourth Proportional to 678,013,441.43, 1,017,023,590.24 and 211,635,770.63
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Solution
The fourth proportional to 678,013,441.43, 1,017,023,590.24 and 211,635,770.63 is: 317,454,725.99
Step by Step Solution
- Step 1: Write the proportion equation
678,013,441.43 : 1,017,023,590.24 = 211,635,770.63 : x - Step 2: Convert to fraction form
678,013,441.43/1,017,023,590.24 = 211,635,770.63/x - Step 3: Cross multiply
678,013,441.43x = 1,017,023,590.24 × 211,635,770.63 - Step 4: Simplify right side
678,013,441.43x = 215,238,571,263,717,536 - Step 5: Solve for x
x = 215,238,571,263,717,536/678,013,441.43 - Step 6: Final answer
x = 317,454,725.99
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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.