Finding the Fourth Proportional to 231,219,118,069.49, 319,056,504,348.41 and 128,340,573,877.75
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Solution
The fourth proportional to 231,219,118,069.49, 319,056,504,348.41 and 128,340,573,877.75 is: 177,095,627,772.43
Step by Step Solution
- Step 1: Write the proportion equation
231,219,118,069.49 : 319,056,504,348.41 = 128,340,573,877.75 : x - Step 2: Convert to fraction form
231,219,118,069.49/319,056,504,348.41 = 128,340,573,877.75/x - Step 3: Cross multiply
231,219,118,069.49x = 319,056,504,348.41 × 128,340,573,877.75 - Step 4: Simplify right side
231,219,118,069.49x = 40,947,894,867,503,775,481,856 - Step 5: Solve for x
x = 40,947,894,867,503,775,481,856/231,219,118,069.49 - Step 6: Final answer
x = 177,095,627,772.43
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1.5x scale
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.