Finding the Fourth Proportional to 138,466,169.74, 207,347,685.21 and 83,099,153.11
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Solution
The fourth proportional to 138,466,169.74, 207,347,685.21 and 83,099,153.11 is: 124,437,738.64
Step by Step Solution
- Step 1: Write the proportion equation
138,466,169.74 : 207,347,685.21 = 83,099,153.11 : x - Step 2: Convert to fraction form
138,466,169.74/207,347,685.21 = 83,099,153.11/x - Step 3: Cross multiply
138,466,169.74x = 207,347,685.21 × 83,099,153.11 - Step 4: Simplify right side
138,466,169.74x = 17,230,417,040,269,874 - Step 5: Solve for x
x = 17,230,417,040,269,874/138,466,169.74 - Step 6: Final answer
x = 124,437,738.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.