Finding the Fourth Proportional to 268,985,318.40, 403,477,977.60 and 160,146,201.60
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Solution
The fourth proportional to 268,985,318.40, 403,477,977.60 and 160,146,201.60 is: 240,219,302.40
Step by Step Solution
- Step 1: Write the proportion equation
268,985,318.40 : 403,477,977.60 = 160,146,201.60 : x - Step 2: Convert to fraction form
268,985,318.40/403,477,977.60 = 160,146,201.60/x - Step 3: Cross multiply
268,985,318.40x = 403,477,977.60 × 160,146,201.60 - Step 4: Simplify right side
268,985,318.40x = 64,615,465,541,889,888 - Step 5: Solve for x
x = 64,615,465,541,889,888/268,985,318.40 - Step 6: Final answer
x = 240,219,302.40
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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.