Finding the Fourth Proportional to 872,161,243.92, 1,203,768,780.84 and 501,087,880.08
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Solution
The fourth proportional to 872,161,243.92, 1,203,768,780.84 and 501,087,880.08 is: 691,608,289.98
Step by Step Solution
- Step 1: Write the proportion equation
872,161,243.92 : 1,203,768,780.84 = 501,087,880.08 : x - Step 2: Convert to fraction form
872,161,243.92/1,203,768,780.84 = 501,087,880.08/x - Step 3: Cross multiply
872,161,243.92x = 1,203,768,780.84 × 501,087,880.08 - Step 4: Simplify right side
872,161,243.92x = 603,193,946,497,601,664 - Step 5: Solve for x
x = 603,193,946,497,601,664/872,161,243.92 - Step 6: Final answer
x = 691,608,289.98
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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.