Finding the Fourth Proportional to 49,389,743.80, 74,084,615.70 and 48,444,959.80
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Solution
The fourth proportional to 49,389,743.80, 74,084,615.70 and 48,444,959.80 is: 72,667,439.70
Step by Step Solution
- Step 1: Write the proportion equation
49,389,743.80 : 74,084,615.70 = 48,444,959.80 : x - Step 2: Convert to fraction form
49,389,743.80/74,084,615.70 = 48,444,959.80/x - Step 3: Cross multiply
49,389,743.80x = 74,084,615.70 × 48,444,959.80 - Step 4: Simplify right side
49,389,743.80x = 3,589,026,229,384,949 - Step 5: Solve for x
x = 3,589,026,229,384,949/49,389,743.80 - Step 6: Final answer
x = 72,667,439.70
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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.