Finding the Fourth Proportional to 76,021,349.76, 104,996,067.68 and 51,532,548.48
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Solution
The fourth proportional to 76,021,349.76, 104,996,067.68 and 51,532,548.48 is: 71,173,623.79
Step by Step Solution
- Step 1: Write the proportion equation
76,021,349.76 : 104,996,067.68 = 51,532,548.48 : x - Step 2: Convert to fraction form
76,021,349.76/104,996,067.68 = 51,532,548.48/x - Step 3: Cross multiply
76,021,349.76x = 104,996,067.68 × 51,532,548.48 - Step 4: Simplify right side
76,021,349.76x = 5,410,714,947,928,961 - Step 5: Solve for x
x = 5,410,714,947,928,961/76,021,349.76 - Step 6: Final answer
x = 71,173,623.79
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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.