Finding the Fourth Proportional to 325,971,911.60, 488,789,905.80 and 121,394,682.80
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Solution
The fourth proportional to 325,971,911.60, 488,789,905.80 and 121,394,682.80 is: 182,029,473.89
Step by Step Solution
- Step 1: Write the proportion equation
325,971,911.60 : 488,789,905.80 = 121,394,682.80 : x - Step 2: Convert to fraction form
325,971,911.60/488,789,905.80 = 121,394,682.80/x - Step 3: Cross multiply
325,971,911.60x = 488,789,905.80 × 121,394,682.80 - Step 4: Simplify right side
325,971,911.60x = 59,336,495,570,432,880 - Step 5: Solve for x
x = 59,336,495,570,432,880/325,971,911.60 - Step 6: Final answer
x = 182,029,473.89
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1.5x scale
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.