Finding the Fourth Proportional to 6,997,274.28, 9,655,940.16 and 3,899,632.80
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Solution
The fourth proportional to 6,997,274.28, 9,655,940.16 and 3,899,632.80 is: 5,381,326.99
Step by Step Solution
- Step 1: Write the proportion equation
6,997,274.28 : 9,655,940.16 = 3,899,632.80 : x - Step 2: Convert to fraction form
6,997,274.28/9,655,940.16 = 3,899,632.80/x - Step 3: Cross multiply
6,997,274.28x = 9,655,940.16 × 3,899,632.80 - Step 4: Simplify right side
6,997,274.28x = 37,654,620,962,773.25 - Step 5: Solve for x
x = 37,654,620,962,773.25/6,997,274.28 - Step 6: Final answer
x = 5,381,326.99
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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.