Finding the Fourth Proportional to 18,201,657.20, 27,302,485.80 and 15,331,875.80
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Solution
The fourth proportional to 18,201,657.20, 27,302,485.80 and 15,331,875.80 is: 22,997,813.70
Step by Step Solution
- Step 1: Write the proportion equation
18,201,657.20 : 27,302,485.80 = 15,331,875.80 : x - Step 2: Convert to fraction form
18,201,657.20/27,302,485.80 = 15,331,875.80/x - Step 3: Cross multiply
18,201,657.20x = 27,302,485.80 × 15,331,875.80 - Step 4: Simplify right side
18,201,657.20x = 418,598,321,316,863.69 - Step 5: Solve for x
x = 418,598,321,316,863.69/18,201,657.20 - Step 6: Final answer
x = 22,997,813.70
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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.