Finding the Fourth Proportional to 418,440,246.60, 627,660,369.90 and 131,225,449.80
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Solution
The fourth proportional to 418,440,246.60, 627,660,369.90 and 131,225,449.80 is: 196,838,174.70
Step by Step Solution
- Step 1: Write the proportion equation
418,440,246.60 : 627,660,369.90 = 131,225,449.80 : x - Step 2: Convert to fraction form
418,440,246.60/627,660,369.90 = 131,225,449.80/x - Step 3: Cross multiply
418,440,246.60x = 627,660,369.90 × 131,225,449.80 - Step 4: Simplify right side
418,440,246.60x = 82,365,014,361,761,872 - Step 5: Solve for x
x = 82,365,014,361,761,872/418,440,246.60 - Step 6: Final answer
x = 196,838,174.70
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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.