Finding the Fourth Proportional to 12,291,505.80, 18,437,258.70 and 5,914,213.80
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Solution
The fourth proportional to 12,291,505.80, 18,437,258.70 and 5,914,213.80 is: 8,871,320.70
Step by Step Solution
- Step 1: Write the proportion equation
12,291,505.80 : 18,437,258.70 = 5,914,213.80 : x - Step 2: Convert to fraction form
12,291,505.80/18,437,258.70 = 5,914,213.80/x - Step 3: Cross multiply
12,291,505.80x = 18,437,258.70 × 5,914,213.80 - Step 4: Simplify right side
12,291,505.80x = 109,041,889,837,710.05 - Step 5: Solve for x
x = 109,041,889,837,710.05/12,291,505.80 - Step 6: Final answer
x = 8,871,320.70
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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.