Finding the Fourth Proportional to 81,648,327.36, 122,472,663.84 and 76,659,867.84
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Solution
The fourth proportional to 81,648,327.36, 122,472,663.84 and 76,659,867.84 is: 114,989,964.00
Step by Step Solution
- Step 1: Write the proportion equation
81,648,327.36 : 122,472,663.84 = 76,659,867.84 : x - Step 2: Convert to fraction form
81,648,327.36/122,472,663.84 = 76,659,867.84/x - Step 3: Cross multiply
81,648,327.36x = 122,472,663.84 × 76,659,867.84 - Step 4: Simplify right side
81,648,327.36x = 9,388,738,223,987,148 - Step 5: Solve for x
x = 9,388,738,223,987,148/81,648,327.36 - Step 6: Final answer
x = 114,989,964.00
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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.