Finding the Fourth Proportional to 440,122,009.05, 660,183,013.58 and 210,539,497.05
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Solution
The fourth proportional to 440,122,009.05, 660,183,013.58 and 210,539,497.05 is: 315,809,245.58
Step by Step Solution
- Step 1: Write the proportion equation
440,122,009.05 : 660,183,013.58 = 210,539,497.05 : x - Step 2: Convert to fraction form
440,122,009.05/660,183,013.58 = 210,539,497.05/x - Step 3: Cross multiply
440,122,009.05x = 660,183,013.58 × 210,539,497.05 - Step 4: Simplify right side
440,122,009.05x = 138,994,599,639,033,840 - Step 5: Solve for x
x = 138,994,599,639,033,840/440,122,009.05 - Step 6: Final answer
x = 315,809,245.58
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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.