Finding the Fourth Proportional to 7,381,231.80, 11,071,847.70 and 4,139,441.70
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Solution
The fourth proportional to 7,381,231.80, 11,071,847.70 and 4,139,441.70 is: 6,209,162.55
Step by Step Solution
- Step 1: Write the proportion equation
7,381,231.80 : 11,071,847.70 = 4,139,441.70 : x - Step 2: Convert to fraction form
7,381,231.80/11,071,847.70 = 4,139,441.70/x - Step 3: Cross multiply
7,381,231.80x = 11,071,847.70 × 4,139,441.70 - Step 4: Simplify right side
7,381,231.80x = 45,831,268,065,429.09 - Step 5: Solve for x
x = 45,831,268,065,429.09/7,381,231.80 - Step 6: Final answer
x = 6,209,162.55
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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.