Finding the Fourth Proportional to 1,028,624,480.12, 1,419,619,540.64 and 576,624,528.14
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Solution
The fourth proportional to 1,028,624,480.12, 1,419,619,540.64 and 576,624,528.14 is: 795,807,861.44
Step by Step Solution
- Step 1: Write the proportion equation
1,028,624,480.12 : 1,419,619,540.64 = 576,624,528.14 : x - Step 2: Convert to fraction form
1,028,624,480.12/1,419,619,540.64 = 576,624,528.14/x - Step 3: Cross multiply
1,028,624,480.12x = 1,419,619,540.64 × 576,624,528.14 - Step 4: Simplify right side
1,028,624,480.12x = 818,587,447,749,882,368 - Step 5: Solve for x
x = 818,587,447,749,882,368/1,028,624,480.12 - Step 6: Final answer
x = 795,807,861.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.