Finding the Fourth Proportional to 138,075,211.99, 190,543,742.21 and 75,351,310.11
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Solution
The fourth proportional to 138,075,211.99, 190,543,742.21 and 75,351,310.11 is: 103,984,780.48
Step by Step Solution
- Step 1: Write the proportion equation
138,075,211.99 : 190,543,742.21 = 75,351,310.11 : x - Step 2: Convert to fraction form
138,075,211.99/190,543,742.21 = 75,351,310.11/x - Step 3: Cross multiply
138,075,211.99x = 190,543,742.21 × 75,351,310.11 - Step 4: Simplify right side
138,075,211.99x = 14,357,720,608,785,608 - Step 5: Solve for x
x = 14,357,720,608,785,608/138,075,211.99 - Step 6: Final answer
x = 103,984,780.48
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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.