Finding the Fourth Proportional to 17,721,639.80, 26,582,459.70 and 17,721,639.80
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Solution
The fourth proportional to 17,721,639.80, 26,582,459.70 and 17,721,639.80 is: 26,582,459.70
Step by Step Solution
- Step 1: Write the proportion equation
17,721,639.80 : 26,582,459.70 = 17,721,639.80 : x - Step 2: Convert to fraction form
17,721,639.80/26,582,459.70 = 17,721,639.80/x - Step 3: Cross multiply
17,721,639.80x = 26,582,459.70 × 17,721,639.80 - Step 4: Simplify right side
17,721,639.80x = 471,084,775,801,416.06 - Step 5: Solve for x
x = 471,084,775,801,416.06/17,721,639.80 - Step 6: Final answer
x = 26,582,459.70
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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.