Finding the Fourth Proportional to 22,195,478.40, 33,257,788.20 and 18,581,679.60
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Solution
The fourth proportional to 22,195,478.40, 33,257,788.20 and 18,581,679.60 is: 27,842,858.50
Step by Step Solution
- Step 1: Write the proportion equation
22,195,478.40 : 33,257,788.20 = 18,581,679.60 : x - Step 2: Convert to fraction form
22,195,478.40/33,257,788.20 = 18,581,679.60/x - Step 3: Cross multiply
22,195,478.40x = 33,257,788.20 × 18,581,679.60 - Step 4: Simplify right side
22,195,478.40x = 617,985,564,537,060.75 - Step 5: Solve for x
x = 617,985,564,537,060.75/22,195,478.40 - Step 6: Final answer
x = 27,842,858.50
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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.