Finding the Fourth Proportional to 20,274,913.06, 27,979,148.36 and 10,982,307.94
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Solution
The fourth proportional to 20,274,913.06, 27,979,148.36 and 10,982,307.94 is: 15,155,459.47
Step by Step Solution
- Step 1: Write the proportion equation
20,274,913.06 : 27,979,148.36 = 10,982,307.94 : x - Step 2: Convert to fraction form
20,274,913.06/27,979,148.36 = 10,982,307.94/x - Step 3: Cross multiply
20,274,913.06x = 27,979,148.36 × 10,982,307.94 - Step 4: Simplify right side
20,274,913.06x = 307,275,623,188,465.94 - Step 5: Solve for x
x = 307,275,623,188,465.94/20,274,913.06 - Step 6: Final answer
x = 15,155,459.47
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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.