Finding the Fourth Proportional to 81,395,779,639.80, 122,093,669,459.70 and 81,395,779,639.80
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Solution
The fourth proportional to 81,395,779,639.80, 122,093,669,459.70 and 81,395,779,639.80 is: 122,093,669,459.70
Step by Step Solution
- Step 1: Write the proportion equation
81,395,779,639.80 : 122,093,669,459.70 = 81,395,779,639.80 : x - Step 2: Convert to fraction form
81,395,779,639.80/122,093,669,459.70 = 81,395,779,639.80/x - Step 3: Cross multiply
81,395,779,639.80x = 122,093,669,459.70 × 81,395,779,639.80 - Step 4: Simplify right side
81,395,779,639.80x = 9,937,909,414,756,320,542,720 - Step 5: Solve for x
x = 9,937,909,414,756,320,542,720/81,395,779,639.80 - Step 6: Final answer
x = 122,093,669,459.70
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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.