Finding the Fourth Proportional to 5,118,156,769.80, 7,677,235,154.70 and 2,012,840,718.60
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Solution
The fourth proportional to 5,118,156,769.80, 7,677,235,154.70 and 2,012,840,718.60 is: 3,019,261,077.90
Step by Step Solution
- Step 1: Write the proportion equation
5,118,156,769.80 : 7,677,235,154.70 = 2,012,840,718.60 : x - Step 2: Convert to fraction form
5,118,156,769.80/7,677,235,154.70 = 2,012,840,718.60/x - Step 3: Cross multiply
5,118,156,769.80x = 7,677,235,154.70 × 2,012,840,718.60 - Step 4: Simplify right side
5,118,156,769.80x = 15,453,051,525,647,529,984 - Step 5: Solve for x
x = 15,453,051,525,647,529,984/5,118,156,769.80 - Step 6: Final answer
x = 3,019,261,077.90
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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.