Finding the Fourth Proportional to 115,435,576.68, 159,303,674.54 and 65,874,963.84
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Solution
The fourth proportional to 115,435,576.68, 159,303,674.54 and 65,874,963.84 is: 90,908,921.68
Step by Step Solution
- Step 1: Write the proportion equation
115,435,576.68 : 159,303,674.54 = 65,874,963.84 : x - Step 2: Convert to fraction form
115,435,576.68/159,303,674.54 = 65,874,963.84/x - Step 3: Cross multiply
115,435,576.68x = 159,303,674.54 × 65,874,963.84 - Step 4: Simplify right side
115,435,576.68x = 10,494,123,799,901,628 - Step 5: Solve for x
x = 10,494,123,799,901,628/115,435,576.68 - Step 6: Final answer
x = 90,908,921.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.