Finding the Fourth Proportional to 13,335,575.18, 18,403,150.12 and 7,224,003.68
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Solution
The fourth proportional to 13,335,575.18, 18,403,150.12 and 7,224,003.68 is: 9,969,155.62
Step by Step Solution
- Step 1: Write the proportion equation
13,335,575.18 : 18,403,150.12 = 7,224,003.68 : x - Step 2: Convert to fraction form
13,335,575.18/18,403,150.12 = 7,224,003.68/x - Step 3: Cross multiply
13,335,575.18x = 18,403,150.12 × 7,224,003.68 - Step 4: Simplify right side
13,335,575.18x = 132,944,424,190,472.44 - Step 5: Solve for x
x = 132,944,424,190,472.44/13,335,575.18 - Step 6: Final answer
x = 9,969,155.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.