Finding the Fourth Proportional to 354,998,393.56, 489,946,449.64 and 204,287,952.08
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Solution
The fourth proportional to 354,998,393.56, 489,946,449.64 and 204,287,952.08 is: 281,945,379.59
Step by Step Solution
- Step 1: Write the proportion equation
354,998,393.56 : 489,946,449.64 = 204,287,952.08 : x - Step 2: Convert to fraction form
354,998,393.56/489,946,449.64 = 204,287,952.08/x - Step 3: Cross multiply
354,998,393.56x = 489,946,449.64 × 204,287,952.08 - Step 4: Simplify right side
354,998,393.56x = 100,090,156,825,822,464 - Step 5: Solve for x
x = 100,090,156,825,822,464/354,998,393.56 - Step 6: Final answer
x = 281,945,379.59
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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.