Finding the Fourth Proportional to 624,246,789.35, 860,770,370.80 and 397,827,273.15
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Solution
The fourth proportional to 624,246,789.35, 860,770,370.80 and 397,827,273.15 is: 548,561,779.20
Step by Step Solution
- Step 1: Write the proportion equation
624,246,789.35 : 860,770,370.80 = 397,827,273.15 : x - Step 2: Convert to fraction form
624,246,789.35/860,770,370.80 = 397,827,273.15/x - Step 3: Cross multiply
624,246,789.35x = 860,770,370.80 × 397,827,273.15 - Step 4: Simplify right side
624,246,789.35x = 342,437,929,424,175,616 - Step 5: Solve for x
x = 342,437,929,424,175,616/624,246,789.35 - Step 6: Final answer
x = 548,561,779.20
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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.