Finding the Fourth Proportional to 436,918,648.97, 603,091,424.82 and 347,774,112.80
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Solution
The fourth proportional to 436,918,648.97, 603,091,424.82 and 347,774,112.80 is: 480,042,647.99
Step by Step Solution
- Step 1: Write the proportion equation
436,918,648.97 : 603,091,424.82 = 347,774,112.80 : x - Step 2: Convert to fraction form
436,918,648.97/603,091,424.82 = 347,774,112.80/x - Step 3: Cross multiply
436,918,648.97x = 603,091,424.82 × 347,774,112.80 - Step 4: Simplify right side
436,918,648.97x = 209,739,585,206,875,296 - Step 5: Solve for x
x = 209,739,585,206,875,296/436,918,648.97 - Step 6: Final answer
x = 480,042,647.99
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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.