Finding the Fourth Proportional to 178,848,447.80, 268,272,671.70 and 156,173,631.80
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Solution
The fourth proportional to 178,848,447.80, 268,272,671.70 and 156,173,631.80 is: 234,260,447.70
Step by Step Solution
- Step 1: Write the proportion equation
178,848,447.80 : 268,272,671.70 = 156,173,631.80 : x - Step 2: Convert to fraction form
178,848,447.80/268,272,671.70 = 156,173,631.80/x - Step 3: Cross multiply
178,848,447.80x = 268,272,671.70 × 156,173,631.80 - Step 4: Simplify right side
178,848,447.80x = 41,897,117,452,078,080 - Step 5: Solve for x
x = 41,897,117,452,078,080/178,848,447.80 - Step 6: Final answer
x = 234,260,447.70
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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.