Finding the Fourth Proportional to 138,014,217.16, 190,425,649.44 and 84,355,297.36
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Solution
The fourth proportional to 138,014,217.16, 190,425,649.44 and 84,355,297.36 is: 116,389,547.50
Step by Step Solution
- Step 1: Write the proportion equation
138,014,217.16 : 190,425,649.44 = 84,355,297.36 : x - Step 2: Convert to fraction form
138,014,217.16/190,425,649.44 = 84,355,297.36/x - Step 3: Cross multiply
138,014,217.16x = 190,425,649.44 × 84,355,297.36 - Step 4: Simplify right side
138,014,217.16x = 16,063,412,283,322,586 - Step 5: Solve for x
x = 16,063,412,283,322,586/138,014,217.16 - Step 6: Final answer
x = 116,389,547.50
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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.