Finding the Fourth Proportional to 811,103,639.98, 1,216,655,459.97 and 811,103,639.98
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Solution
The fourth proportional to 811,103,639.98, 1,216,655,459.97 and 811,103,639.98 is: 1,216,655,459.97
Step by Step Solution
- Step 1: Write the proportion equation
811,103,639.98 : 1,216,655,459.97 = 811,103,639.98 : x - Step 2: Convert to fraction form
811,103,639.98/1,216,655,459.97 = 811,103,639.98/x - Step 3: Cross multiply
811,103,639.98x = 1,216,655,459.97 × 811,103,639.98 - Step 4: Simplify right side
811,103,639.98x = 986,833,672,183,208,192 - Step 5: Solve for x
x = 986,833,672,183,208,192/811,103,639.98 - Step 6: Final answer
x = 1,216,655,459.97
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Similar ratio
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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.