Finding the Fourth Proportional to 808,323,450.80, 1,212,485,176.20 and 726,694,113.20
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Solution
The fourth proportional to 808,323,450.80, 1,212,485,176.20 and 726,694,113.20 is: 1,090,041,169.80
Step by Step Solution
- Step 1: Write the proportion equation
808,323,450.80 : 1,212,485,176.20 = 726,694,113.20 : x - Step 2: Convert to fraction form
808,323,450.80/1,212,485,176.20 = 726,694,113.20/x - Step 3: Cross multiply
808,323,450.80x = 1,212,485,176.20 × 726,694,113.20 - Step 4: Simplify right side
808,323,450.80x = 881,105,839,886,804,864 - Step 5: Solve for x
x = 881,105,839,886,804,864/808,323,450.80 - Step 6: Final answer
x = 1,090,041,169.80
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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.