Finding the Fourth Proportional to 18,402,753.60, 27,580,510.80 and 11,206,648.80
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Solution
The fourth proportional to 18,402,753.60, 27,580,510.80 and 11,206,648.80 is: 16,795,589.67
Step by Step Solution
- Step 1: Write the proportion equation
18,402,753.60 : 27,580,510.80 = 11,206,648.80 : x - Step 2: Convert to fraction form
18,402,753.60/27,580,510.80 = 11,206,648.80/x - Step 3: Cross multiply
18,402,753.60x = 27,580,510.80 × 11,206,648.80 - Step 4: Simplify right side
18,402,753.60x = 309,085,098,260,207.06 - Step 5: Solve for x
x = 309,085,098,260,207.06/18,402,753.60 - Step 6: Final answer
x = 16,795,589.67
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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.