Finding the Fourth Proportional to 65,422,638.70, 90,283,596.68 and 37,543,129.02
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Solution
The fourth proportional to 65,422,638.70, 90,283,596.68 and 37,543,129.02 is: 51,809,721.92
Step by Step Solution
- Step 1: Write the proportion equation
65,422,638.70 : 90,283,596.68 = 37,543,129.02 : x - Step 2: Convert to fraction form
65,422,638.70/90,283,596.68 = 37,543,129.02/x - Step 3: Cross multiply
65,422,638.70x = 90,283,596.68 × 37,543,129.02 - Step 4: Simplify right side
65,422,638.70x = 3,389,528,718,546,884 - Step 5: Solve for x
x = 3,389,528,718,546,884/65,422,638.70 - Step 6: Final answer
x = 51,809,721.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.