Finding the Fourth Proportional to 18,720,020.70, 26,283,611.70 and 18,720,020.70
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Solution
The fourth proportional to 18,720,020.70, 26,283,611.70 and 18,720,020.70 is: 26,283,611.70
Step by Step Solution
- Step 1: Write the proportion equation
18,720,020.70 : 26,283,611.70 = 18,720,020.70 : x - Step 2: Convert to fraction form
18,720,020.70/26,283,611.70 = 18,720,020.70/x - Step 3: Cross multiply
18,720,020.70x = 26,283,611.70 × 18,720,020.70 - Step 4: Simplify right side
18,720,020.70x = 492,029,755,094,762.19 - Step 5: Solve for x
x = 492,029,755,094,762.19/18,720,020.70 - Step 6: Final answer
x = 26,283,611.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.