Finding the Fourth Proportional to 73,774,455,378.75, 110,668,436,414.78 and 20,715,130,956.42
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Solution
The fourth proportional to 73,774,455,378.75, 110,668,436,414.78 and 20,715,130,956.42 is: 31,074,592,706.99
Step by Step Solution
- Step 1: Write the proportion equation
73,774,455,378.75 : 110,668,436,414.78 = 20,715,130,956.42 : x - Step 2: Convert to fraction form
73,774,455,378.75/110,668,436,414.78 = 20,715,130,956.42/x - Step 3: Cross multiply
73,774,455,378.75x = 110,668,436,414.78 × 20,715,130,956.42 - Step 4: Simplify right side
73,774,455,378.75x = 2,292,511,153,074,407,473,152 - Step 5: Solve for x
x = 2,292,511,153,074,407,473,152/73,774,455,378.75 - Step 6: Final answer
x = 31,074,592,706.99
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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.