Finding the Fourth Proportional to 9,220,846,715.54, 12,724,772,724.81 and 4,991,758,604.19
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Solution
The fourth proportional to 9,220,846,715.54, 12,724,772,724.81 and 4,991,758,604.19 is: 6,888,629,178.53
Step by Step Solution
- Step 1: Write the proportion equation
9,220,846,715.54 : 12,724,772,724.81 = 4,991,758,604.19 : x - Step 2: Convert to fraction form
9,220,846,715.54/12,724,772,724.81 = 4,991,758,604.19/x - Step 3: Cross multiply
9,220,846,715.54x = 12,724,772,724.81 × 4,991,758,604.19 - Step 4: Simplify right side
9,220,846,715.54x = 63,518,993,735,432,544,256 - Step 5: Solve for x
x = 63,518,993,735,432,544,256/9,220,846,715.54 - Step 6: Final answer
x = 6,888,629,178.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.