Finding the Fourth Proportional to 373,685,683.12, 515,676,251.68 and 206,418,344.32
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Solution
The fourth proportional to 373,685,683.12, 515,676,251.68 and 206,418,344.32 is: 284,851,796.27
Step by Step Solution
- Step 1: Write the proportion equation
373,685,683.12 : 515,676,251.68 = 206,418,344.32 : x - Step 2: Convert to fraction form
373,685,683.12/515,676,251.68 = 206,418,344.32/x - Step 3: Cross multiply
373,685,683.12x = 515,676,251.68 × 206,418,344.32 - Step 4: Simplify right side
373,685,683.12x = 106,445,038,076,929,216 - Step 5: Solve for x
x = 106,445,038,076,929,216/373,685,683.12 - Step 6: Final answer
x = 284,851,796.27
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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.