Finding the Fourth Proportional to 515,959,234.41, 774,271,815.08 and 188,407,322.85
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Solution
The fourth proportional to 515,959,234.41, 774,271,815.08 and 188,407,322.85 is: 282,732,568.99
Step by Step Solution
- Step 1: Write the proportion equation
515,959,234.41 : 774,271,815.08 = 188,407,322.85 : x - Step 2: Convert to fraction form
515,959,234.41/774,271,815.08 = 188,407,322.85/x - Step 3: Cross multiply
515,959,234.41x = 774,271,815.08 × 188,407,322.85 - Step 4: Simplify right side
515,959,234.41x = 145,878,479,836,491,040 - Step 5: Solve for x
x = 145,878,479,836,491,040/515,959,234.41 - Step 6: Final answer
x = 282,732,568.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.