Finding the Fourth Proportional to 84,312,122.40, 126,468,183.60 and 65,180,246.40
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Solution
The fourth proportional to 84,312,122.40, 126,468,183.60 and 65,180,246.40 is: 97,770,369.60
Step by Step Solution
- Step 1: Write the proportion equation
84,312,122.40 : 126,468,183.60 = 65,180,246.40 : x - Step 2: Convert to fraction form
84,312,122.40/126,468,183.60 = 65,180,246.40/x - Step 3: Cross multiply
84,312,122.40x = 126,468,183.60 × 65,180,246.40 - Step 4: Simplify right side
84,312,122.40x = 8,243,227,368,808,438 - Step 5: Solve for x
x = 8,243,227,368,808,438/84,312,122.40 - Step 6: Final answer
x = 97,770,369.60
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Similar ratio
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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.