Finding the Fourth Proportional to 1,088,691,920.70, 1,633,037,881.05 and 629,526,896.70
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Solution
The fourth proportional to 1,088,691,920.70, 1,633,037,881.05 and 629,526,896.70 is: 944,290,345.05
Step by Step Solution
- Step 1: Write the proportion equation
1,088,691,920.70 : 1,633,037,881.05 = 629,526,896.70 : x - Step 2: Convert to fraction form
1,088,691,920.70/1,633,037,881.05 = 629,526,896.70/x - Step 3: Cross multiply
1,088,691,920.70x = 1,633,037,881.05 × 629,526,896.70 - Step 4: Simplify right side
1,088,691,920.70x = 1,028,041,269,450,950,272 - Step 5: Solve for x
x = 1,028,041,269,450,950,272/1,088,691,920.70 - Step 6: Final answer
x = 944,290,345.05
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Double scale
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Similar ratio
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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.