Finding the Fourth Proportional to 125,163,222.64, 172,721,975.01 and 69,408,501.75
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Solution
The fourth proportional to 125,163,222.64, 172,721,975.01 and 69,408,501.75 is: 95,781,917.82
Step by Step Solution
- Step 1: Write the proportion equation
125,163,222.64 : 172,721,975.01 = 69,408,501.75 : x - Step 2: Convert to fraction form
125,163,222.64/172,721,975.01 = 69,408,501.75/x - Step 3: Cross multiply
125,163,222.64x = 172,721,975.01 × 69,408,501.75 - Step 4: Simplify right side
125,163,222.64x = 11,988,373,504,745,040 - Step 5: Solve for x
x = 11,988,373,504,745,040/125,163,222.64 - Step 6: Final answer
x = 95,781,917.82
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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.