Finding the Fourth Proportional to 12,461,403.40, 18,679,202.70 and 6,769,601.80
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Solution
The fourth proportional to 12,461,403.40, 18,679,202.70 and 6,769,601.80 is: 10,147,393.53
Step by Step Solution
- Step 1: Write the proportion equation
12,461,403.40 : 18,679,202.70 = 6,769,601.80 : x - Step 2: Convert to fraction form
12,461,403.40/18,679,202.70 = 6,769,601.80/x - Step 3: Cross multiply
12,461,403.40x = 18,679,202.70 × 6,769,601.80 - Step 4: Simplify right side
12,461,403.40x = 126,450,764,220,484.84 - Step 5: Solve for x
x = 126,450,764,220,484.84/12,461,403.40 - Step 6: Final answer
x = 10,147,393.53
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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.