Finding the Fourth Proportional to 880,206,826.65, 1,320,310,239.98 and 813,694,033.05
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Solution
The fourth proportional to 880,206,826.65, 1,320,310,239.98 and 813,694,033.05 is: 1,220,541,049.58
Step by Step Solution
- Step 1: Write the proportion equation
880,206,826.65 : 1,320,310,239.98 = 813,694,033.05 : x - Step 2: Convert to fraction form
880,206,826.65/1,320,310,239.98 = 813,694,033.05/x - Step 3: Cross multiply
880,206,826.65x = 1,320,310,239.98 × 813,694,033.05 - Step 4: Simplify right side
880,206,826.65x = 1,074,328,564,042,470,912 - Step 5: Solve for x
x = 1,074,328,564,042,470,912/880,206,826.65 - Step 6: Final answer
x = 1,220,541,049.58
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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.