Finding the Fourth Proportional to 5,412,000.40, 8,118,000.60 and 1,624,991.20
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Solution
The fourth proportional to 5,412,000.40, 8,118,000.60 and 1,624,991.20 is: 2,437,486.80
Step by Step Solution
- Step 1: Write the proportion equation
5,412,000.40 : 8,118,000.60 = 1,624,991.20 : x - Step 2: Convert to fraction form
5,412,000.40/8,118,000.60 = 1,624,991.20/x - Step 3: Cross multiply
5,412,000.40x = 8,118,000.60 × 1,624,991.20 - Step 4: Simplify right side
5,412,000.40x = 13,191,679,536,594.72 - Step 5: Solve for x
x = 13,191,679,536,594.72/5,412,000.40 - Step 6: Final answer
x = 2,437,486.80
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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.