Finding the Fourth Proportional to 30,634,481.36, 42,275,445.64 and 16,883,415.76
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Solution
The fourth proportional to 30,634,481.36, 42,275,445.64 and 16,883,415.76 is: 23,299,037.34
Step by Step Solution
- Step 1: Write the proportion equation
30,634,481.36 : 42,275,445.64 = 16,883,415.76 : x - Step 2: Convert to fraction form
30,634,481.36/42,275,445.64 = 16,883,415.76/x - Step 3: Cross multiply
30,634,481.36x = 42,275,445.64 × 16,883,415.76 - Step 4: Simplify right side
30,634,481.36x = 713,753,925,179,399.38 - Step 5: Solve for x
x = 713,753,925,179,399.38/30,634,481.36 - Step 6: Final answer
x = 23,299,037.34
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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.