Finding the Fourth Proportional to 178,690,177.20, 268,035,265.80 and 133,340,545.20
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Solution
The fourth proportional to 178,690,177.20, 268,035,265.80 and 133,340,545.20 is: 200,010,817.80
Step by Step Solution
- Step 1: Write the proportion equation
178,690,177.20 : 268,035,265.80 = 133,340,545.20 : x - Step 2: Convert to fraction form
178,690,177.20/268,035,265.80 = 133,340,545.20/x - Step 3: Cross multiply
178,690,177.20x = 268,035,265.80 × 133,340,545.20 - Step 4: Simplify right side
178,690,177.20x = 35,739,968,474,598,916 - Step 5: Solve for x
x = 35,739,968,474,598,916/178,690,177.20 - Step 6: Final answer
x = 200,010,817.80
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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.