Finding the Fourth Proportional to 73,774,455,412.48, 110,668,436,465.46 and 20,715,130,990.18
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Solution
The fourth proportional to 73,774,455,412.48, 110,668,436,465.46 and 20,715,130,990.18 is: 31,074,592,757.65
Step by Step Solution
- Step 1: Write the proportion equation
73,774,455,412.48 : 110,668,436,465.46 = 20,715,130,990.18 : x - Step 2: Convert to fraction form
73,774,455,412.48/110,668,436,465.46 = 20,715,130,990.18/x - Step 3: Cross multiply
73,774,455,412.48x = 110,668,436,465.46 × 20,715,130,990.18 - Step 4: Simplify right side
73,774,455,412.48x = 2,292,511,157,860,416,880,640 - Step 5: Solve for x
x = 2,292,511,157,860,416,880,640/73,774,455,412.48 - Step 6: Final answer
x = 31,074,592,757.65
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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.