Finding the Fourth Proportional to 178,857,657.20, 268,286,485.80 and 97,015,743.20
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Solution
The fourth proportional to 178,857,657.20, 268,286,485.80 and 97,015,743.20 is: 145,523,614.80
Step by Step Solution
- Step 1: Write the proportion equation
178,857,657.20 : 268,286,485.80 = 97,015,743.20 : x - Step 2: Convert to fraction form
178,857,657.20/268,286,485.80 = 97,015,743.20/x - Step 3: Cross multiply
178,857,657.20x = 268,286,485.80 × 97,015,743.20 - Step 4: Simplify right side
178,857,657.20x = 26,028,012,810,403,248 - Step 5: Solve for x
x = 26,028,012,810,403,248/178,857,657.20 - Step 6: Final answer
x = 145,523,614.80
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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.