Finding the Fourth Proportional to 7,022,493,723.36, 9,681,666,390.53 and 5,578,859,555.18
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Solution
The fourth proportional to 7,022,493,723.36, 9,681,666,390.53 and 5,578,859,555.18 is: 7,691,378,473.32
Step by Step Solution
- Step 1: Write the proportion equation
7,022,493,723.36 : 9,681,666,390.53 = 5,578,859,555.18 : x - Step 2: Convert to fraction form
7,022,493,723.36/9,681,666,390.53 = 5,578,859,555.18/x - Step 3: Cross multiply
7,022,493,723.36x = 9,681,666,390.53 × 5,578,859,555.18 - Step 4: Simplify right side
7,022,493,723.36x = 54,012,657,052,873,359,360 - Step 5: Solve for x
x = 54,012,657,052,873,359,360/7,022,493,723.36 - Step 6: Final answer
x = 7,691,378,473.32
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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.