Finding the Fourth Proportional to 320,479,112.93, 480,709,701.34 and 102,142,556.82
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Solution
The fourth proportional to 320,479,112.93, 480,709,701.34 and 102,142,556.82 is: 153,210,976.95
Step by Step Solution
- Step 1: Write the proportion equation
320,479,112.93 : 480,709,701.34 = 102,142,556.82 : x - Step 2: Convert to fraction form
320,479,112.93/480,709,701.34 = 102,142,556.82/x - Step 3: Cross multiply
320,479,112.93x = 480,709,701.34 × 102,142,556.82 - Step 4: Simplify right side
320,479,112.93x = 49,100,917,982,790,816 - Step 5: Solve for x
x = 49,100,917,982,790,816/320,479,112.93 - Step 6: Final answer
x = 153,210,976.95
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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.