Finding the Fourth Proportional to 87,743,173.04, 121,211,706.36 and 70,078,883.76
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Solution
The fourth proportional to 87,743,173.04, 121,211,706.36 and 70,078,883.76 is: 96,809,595.39
Step by Step Solution
- Step 1: Write the proportion equation
87,743,173.04 : 121,211,706.36 = 70,078,883.76 : x - Step 2: Convert to fraction form
87,743,173.04/121,211,706.36 = 70,078,883.76/x - Step 3: Cross multiply
87,743,173.04x = 121,211,706.36 × 70,078,883.76 - Step 4: Simplify right side
87,743,173.04x = 8,494,381,080,353,693 - Step 5: Solve for x
x = 8,494,381,080,353,693/87,743,173.04 - Step 6: Final answer
x = 96,809,595.39
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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.