Finding the Fourth Proportional to 178,768,935.60, 268,128,520.20 and 57,612,634.80
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Solution
The fourth proportional to 178,768,935.60, 268,128,520.20 and 57,612,634.80 is: 86,410,932.98
Step by Step Solution
- Step 1: Write the proportion equation
178,768,935.60 : 268,128,520.20 = 57,612,634.80 : x - Step 2: Convert to fraction form
178,768,935.60/268,128,520.20 = 57,612,634.80/x - Step 3: Cross multiply
178,768,935.60x = 268,128,520.20 × 57,612,634.80 - Step 4: Simplify right side
178,768,935.60x = 15,447,590,513,747,022 - Step 5: Solve for x
x = 15,447,590,513,747,022/178,768,935.60 - Step 6: Final answer
x = 86,410,932.98
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1.5x scale
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.