Finding the Fourth Proportional to 90,838,554.20, 136,289,324.10 and 39,757,232.60
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Solution
The fourth proportional to 90,838,554.20, 136,289,324.10 and 39,757,232.60 is: 59,649,632.33
Step by Step Solution
- Step 1: Write the proportion equation
90,838,554.20 : 136,289,324.10 = 39,757,232.60 : x - Step 2: Convert to fraction form
90,838,554.20/136,289,324.10 = 39,757,232.60/x - Step 3: Cross multiply
90,838,554.20x = 136,289,324.10 × 39,757,232.60 - Step 4: Simplify right side
90,838,554.20x = 5,418,486,359,140,486 - Step 5: Solve for x
x = 5,418,486,359,140,486/90,838,554.20 - Step 6: Final answer
x = 59,649,632.33
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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.