Finding the Fourth Proportional to 3,969,656,423.80, 5,954,484,635.70 and 2,867,660,366.20
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Solution
The fourth proportional to 3,969,656,423.80, 5,954,484,635.70 and 2,867,660,366.20 is: 4,301,490,549.30
Step by Step Solution
- Step 1: Write the proportion equation
3,969,656,423.80 : 5,954,484,635.70 = 2,867,660,366.20 : x - Step 2: Convert to fraction form
3,969,656,423.80/5,954,484,635.70 = 2,867,660,366.20/x - Step 3: Cross multiply
3,969,656,423.80x = 5,954,484,635.70 × 2,867,660,366.20 - Step 4: Simplify right side
3,969,656,423.80x = 17,075,439,590,943,733,760 - Step 5: Solve for x
x = 17,075,439,590,943,733,760/3,969,656,423.80 - Step 6: Final answer
x = 4,301,490,549.30
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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.