Finding the Fourth Proportional to 487,957,920,475.80, 731,936,880,713.70 and 173,775,669,979.80
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Solution
The fourth proportional to 487,957,920,475.80, 731,936,880,713.70 and 173,775,669,979.80 is: 260,663,504,969.70
Step by Step Solution
- Step 1: Write the proportion equation
487,957,920,475.80 : 731,936,880,713.70 = 173,775,669,979.80 : x - Step 2: Convert to fraction form
487,957,920,475.80/731,936,880,713.70 = 173,775,669,979.80/x - Step 3: Cross multiply
487,957,920,475.80x = 731,936,880,713.70 × 173,775,669,979.80 - Step 4: Simplify right side
487,957,920,475.80x = 127,192,821,828,948,150,190,080 - Step 5: Solve for x
x = 127,192,821,828,948,150,190,080/487,957,920,475.80 - Step 6: Final answer
x = 260,663,504,969.70
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1.5x scale
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.