Finding the Fourth Proportional to 863,477,986.14, 1,295,307,699.21 and 281,257,623.90
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Solution
The fourth proportional to 863,477,986.14, 1,295,307,699.21 and 281,257,623.90 is: 421,915,985.75
Step by Step Solution
- Step 1: Write the proportion equation
863,477,986.14 : 1,295,307,699.21 = 281,257,623.90 : x - Step 2: Convert to fraction form
863,477,986.14/1,295,307,699.21 = 281,257,623.90/x - Step 3: Cross multiply
863,477,986.14x = 1,295,307,699.21 × 281,257,623.90 - Step 4: Simplify right side
863,477,986.14x = 364,315,165,699,180,480 - Step 5: Solve for x
x = 364,315,165,699,180,480/863,477,986.14 - Step 6: Final answer
x = 421,915,985.75
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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.