Finding the Fourth Proportional to 3,413,774,415.60, 5,120,661,623.40 and 960,111,318.60
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Solution
The fourth proportional to 3,413,774,415.60, 5,120,661,623.40 and 960,111,318.60 is: 1,440,166,977.90
Step by Step Solution
- Step 1: Write the proportion equation
3,413,774,415.60 : 5,120,661,623.40 = 960,111,318.60 : x - Step 2: Convert to fraction form
3,413,774,415.60/5,120,661,623.40 = 960,111,318.60/x - Step 3: Cross multiply
3,413,774,415.60x = 5,120,661,623.40 × 960,111,318.60 - Step 4: Simplify right side
3,413,774,415.60x = 4,916,405,183,346,990,080 - Step 5: Solve for x
x = 4,916,405,183,346,990,080/3,413,774,415.60 - Step 6: Final answer
x = 1,440,166,977.90
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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.