Finding the Fourth Proportional to 18,153,640.20, 27,230,460.30 and 16,641,985.80
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Solution
The fourth proportional to 18,153,640.20, 27,230,460.30 and 16,641,985.80 is: 24,962,978.70
Step by Step Solution
- Step 1: Write the proportion equation
18,153,640.20 : 27,230,460.30 = 16,641,985.80 : x - Step 2: Convert to fraction form
18,153,640.20/27,230,460.30 = 16,641,985.80/x - Step 3: Cross multiply
18,153,640.20x = 27,230,460.30 × 16,641,985.80 - Step 4: Simplify right side
18,153,640.20x = 453,168,933,640,063.75 - Step 5: Solve for x
x = 453,168,933,640,063.75/18,153,640.20 - Step 6: Final answer
x = 24,962,978.70
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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.