Finding the Fourth Proportional to 129,993,832.36, 195,012,670.44 and 43,711,728.80
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Solution
The fourth proportional to 129,993,832.36, 195,012,670.44 and 43,711,728.80 is: 65,574,964.66
Step by Step Solution
- Step 1: Write the proportion equation
129,993,832.36 : 195,012,670.44 = 43,711,728.80 : x - Step 2: Convert to fraction form
129,993,832.36/195,012,670.44 = 43,711,728.80/x - Step 3: Cross multiply
129,993,832.36x = 195,012,670.44 × 43,711,728.80 - Step 4: Simplify right side
129,993,832.36x = 8,524,340,962,837,056 - Step 5: Solve for x
x = 8,524,340,962,837,056/129,993,832.36 - Step 6: Final answer
x = 65,574,964.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.