Finding the Fourth Proportional to 467,814,694.82, 645,589,380.68 and 258,974,325.05
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Solution
The fourth proportional to 467,814,694.82, 645,589,380.68 and 258,974,325.05 is: 357,387,392.85
Step by Step Solution
- Step 1: Write the proportion equation
467,814,694.82 : 645,589,380.68 = 258,974,325.05 : x - Step 2: Convert to fraction form
467,814,694.82/645,589,380.68 = 258,974,325.05/x - Step 3: Cross multiply
467,814,694.82x = 645,589,380.68 × 258,974,325.05 - Step 4: Simplify right side
467,814,694.82x = 167,191,074,116,527,680 - Step 5: Solve for x
x = 167,191,074,116,527,680/467,814,694.82 - Step 6: Final answer
x = 357,387,392.85
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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.