Finding the Fourth Proportional to 664,851,027.20, 997,276,540.80 and 358,741,011.20
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Solution
The fourth proportional to 664,851,027.20, 997,276,540.80 and 358,741,011.20 is: 538,111,516.80
Step by Step Solution
- Step 1: Write the proportion equation
664,851,027.20 : 997,276,540.80 = 358,741,011.20 : x - Step 2: Convert to fraction form
664,851,027.20/997,276,540.80 = 358,741,011.20/x - Step 3: Cross multiply
664,851,027.20x = 997,276,540.80 × 358,741,011.20 - Step 4: Simplify right side
664,851,027.20x = 357,763,994,692,630,016 - Step 5: Solve for x
x = 357,763,994,692,630,016/664,851,027.20 - Step 6: Final answer
x = 538,111,516.80
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Similar ratio
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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.