Finding the Fourth Proportional to 87,721,765.20, 121,068,704.56 and 50,544,927.84
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Solution
The fourth proportional to 87,721,765.20, 121,068,704.56 and 50,544,927.84 is: 69,759,300.01
Step by Step Solution
- Step 1: Write the proportion equation
87,721,765.20 : 121,068,704.56 = 50,544,927.84 : x - Step 2: Convert to fraction form
87,721,765.20/121,068,704.56 = 50,544,927.84/x - Step 3: Cross multiply
87,721,765.20x = 121,068,704.56 × 50,544,927.84 - Step 4: Simplify right side
87,721,765.20x = 6,119,408,935,667,480 - Step 5: Solve for x
x = 6,119,408,935,667,480/87,721,765.20 - Step 6: Final answer
x = 69,759,300.01
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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.