Finding the Fourth Proportional to 9,720,287.05, 13,414,403.38 and 5,590,320.99
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Solution
The fourth proportional to 9,720,287.05, 13,414,403.38 and 5,590,320.99 is: 7,714,877.19
Step by Step Solution
- Step 1: Write the proportion equation
9,720,287.05 : 13,414,403.38 = 5,590,320.99 : x - Step 2: Convert to fraction form
9,720,287.05/13,414,403.38 = 5,590,320.99/x - Step 3: Cross multiply
9,720,287.05x = 13,414,403.38 × 5,590,320.99 - Step 4: Simplify right side
9,720,287.05x = 74,990,820,783,540.95 - Step 5: Solve for x
x = 74,990,820,783,540.95/9,720,287.05 - Step 6: Final answer
x = 7,714,877.19
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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.