Finding the Fourth Proportional to 135,259,899.48, 186,658,728.84 and 73,380,221.64
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Solution
The fourth proportional to 135,259,899.48, 186,658,728.84 and 73,380,221.64 is: 101,264,742.51
Step by Step Solution
- Step 1: Write the proportion equation
135,259,899.48 : 186,658,728.84 = 73,380,221.64 : x - Step 2: Convert to fraction form
135,259,899.48/186,658,728.84 = 73,380,221.64/x - Step 3: Cross multiply
135,259,899.48x = 186,658,728.84 × 73,380,221.64 - Step 4: Simplify right side
135,259,899.48x = 13,697,058,893,319,860 - Step 5: Solve for x
x = 13,697,058,893,319,860/135,259,899.48 - Step 6: Final answer
x = 101,264,742.51
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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.