Finding the Fourth Proportional to 887,505,310.63, 1,224,793,380.36 and 491,021,842.80
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Solution
The fourth proportional to 887,505,310.63, 1,224,793,380.36 and 491,021,842.80 is: 677,630,089.05
Step by Step Solution
- Step 1: Write the proportion equation
887,505,310.63 : 1,224,793,380.36 = 491,021,842.80 : x - Step 2: Convert to fraction form
887,505,310.63/1,224,793,380.36 = 491,021,842.80/x - Step 3: Cross multiply
887,505,310.63x = 1,224,793,380.36 × 491,021,842.80 - Step 4: Simplify right side
887,505,310.63x = 601,400,302,673,608,448 - Step 5: Solve for x
x = 601,400,302,673,608,448/887,505,310.63 - Step 6: Final answer
x = 677,630,089.05
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1.5x scale
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.