Finding the Fourth Proportional to 421,083,901.70, 581,056,787.46 and 232,908,145.70
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Solution
The fourth proportional to 421,083,901.70, 581,056,787.46 and 232,908,145.70 is: 321,391,671.27
Step by Step Solution
- Step 1: Write the proportion equation
421,083,901.70 : 581,056,787.46 = 232,908,145.70 : x - Step 2: Convert to fraction form
421,083,901.70/581,056,787.46 = 232,908,145.70/x - Step 3: Cross multiply
421,083,901.70x = 581,056,787.46 × 232,908,145.70 - Step 4: Simplify right side
421,083,901.70x = 135,332,858,913,707,616 - Step 5: Solve for x
x = 135,332,858,913,707,616/421,083,901.70 - Step 6: Final answer
x = 321,391,671.27
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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.