Finding the Fourth Proportional to 880,207,410.30, 1,320,311,115.45 and 266,711,919.90
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Solution
The fourth proportional to 880,207,410.30, 1,320,311,115.45 and 266,711,919.90 is: 400,067,879.85
Step by Step Solution
- Step 1: Write the proportion equation
880,207,410.30 : 1,320,311,115.45 = 266,711,919.90 : x - Step 2: Convert to fraction form
880,207,410.30/1,320,311,115.45 = 266,711,919.90/x - Step 3: Cross multiply
880,207,410.30x = 1,320,311,115.45 × 266,711,919.90 - Step 4: Simplify right side
880,207,410.30x = 352,142,712,466,980,096 - Step 5: Solve for x
x = 352,142,712,466,980,096/880,207,410.30 - Step 6: Final answer
x = 400,067,879.85
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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.