Finding the Fourth Proportional to 265,890,007.55, 366,989,432.60 and 155,917,149.95
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Solution
The fourth proportional to 265,890,007.55, 366,989,432.60 and 155,917,149.95 is: 215,201,567.45
Step by Step Solution
- Step 1: Write the proportion equation
265,890,007.55 : 366,989,432.60 = 155,917,149.95 : x - Step 2: Convert to fraction form
265,890,007.55/366,989,432.60 = 155,917,149.95/x - Step 3: Cross multiply
265,890,007.55x = 366,989,432.60 × 155,917,149.95 - Step 4: Simplify right side
265,890,007.55x = 57,219,946,392,759,616 - Step 5: Solve for x
x = 57,219,946,392,759,616/265,890,007.55 - Step 6: Final answer
x = 215,201,567.45
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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.