Finding the Fourth Proportional to 81,648,015.80, 122,472,023.70 and 27,795,327.80
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Solution
The fourth proportional to 81,648,015.80, 122,472,023.70 and 27,795,327.80 is: 41,692,991.70
Step by Step Solution
- Step 1: Write the proportion equation
81,648,015.80 : 122,472,023.70 = 27,795,327.80 : x - Step 2: Convert to fraction form
81,648,015.80/122,472,023.70 = 27,795,327.80/x - Step 3: Cross multiply
81,648,015.80x = 122,472,023.70 × 27,795,327.80 - Step 4: Simplify right side
81,648,015.80x = 3,404,150,045,070,869 - Step 5: Solve for x
x = 3,404,150,045,070,869/81,648,015.80 - Step 6: Final answer
x = 41,692,991.70
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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.