Finding the Fourth Proportional to 5,665,423,618.80, 8,498,135,428.20 and 3,216,543,490.80
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Solution
The fourth proportional to 5,665,423,618.80, 8,498,135,428.20 and 3,216,543,490.80 is: 4,824,815,236.20
Step by Step Solution
- Step 1: Write the proportion equation
5,665,423,618.80 : 8,498,135,428.20 = 3,216,543,490.80 : x - Step 2: Convert to fraction form
5,665,423,618.80/8,498,135,428.20 = 3,216,543,490.80/x - Step 3: Cross multiply
5,665,423,618.80x = 8,498,135,428.20 × 3,216,543,490.80 - Step 4: Simplify right side
5,665,423,618.80x = 27,334,622,195,513,581,568 - Step 5: Solve for x
x = 27,334,622,195,513,581,568/5,665,423,618.80 - Step 6: Final answer
x = 4,824,815,236.20
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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.