Finding the Fourth Proportional to 66,427,220.48, 91,588,122.56 and 54,625,245.08
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Solution
The fourth proportional to 66,427,220.48, 91,588,122.56 and 54,625,245.08 is: 75,315,866.07
Step by Step Solution
- Step 1: Write the proportion equation
66,427,220.48 : 91,588,122.56 = 54,625,245.08 : x - Step 2: Convert to fraction form
66,427,220.48/91,588,122.56 = 54,625,245.08/x - Step 3: Cross multiply
66,427,220.48x = 91,588,122.56 × 54,625,245.08 - Step 4: Simplify right side
66,427,220.48x = 5,003,023,640,935,700 - Step 5: Solve for x
x = 5,003,023,640,935,700/66,427,220.48 - Step 6: Final answer
x = 75,315,866.07
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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.