Finding the Fourth Proportional to 10,254,747.20, 15,361,845.60 and 8,993,998.40
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Solution
The fourth proportional to 10,254,747.20, 15,361,845.60 and 8,993,998.40 is: 13,473,215.09
Step by Step Solution
- Step 1: Write the proportion equation
10,254,747.20 : 15,361,845.60 = 8,993,998.40 : x - Step 2: Convert to fraction form
10,254,747.20/15,361,845.60 = 8,993,998.40/x - Step 3: Cross multiply
10,254,747.20x = 15,361,845.60 × 8,993,998.40 - Step 4: Simplify right side
10,254,747.20x = 138,164,414,747,447.05 - Step 5: Solve for x
x = 138,164,414,747,447.05/10,254,747.20 - Step 6: Final answer
x = 13,473,215.09
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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.