Finding the Fourth Proportional to 7,963,489.89, 11,926,634.40 and 7,320,446.28
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Solution
The fourth proportional to 7,963,489.89, 11,926,634.40 and 7,320,446.28 is: 10,963,570.95
Step by Step Solution
- Step 1: Write the proportion equation
7,963,489.89 : 11,926,634.40 = 7,320,446.28 : x - Step 2: Convert to fraction form
7,963,489.89/11,926,634.40 = 7,320,446.28/x - Step 3: Cross multiply
7,963,489.89x = 11,926,634.40 × 7,320,446.28 - Step 4: Simplify right side
7,963,489.89x = 87,308,286,426,400.03 - Step 5: Solve for x
x = 87,308,286,426,400.03/7,963,489.89 - Step 6: Final answer
x = 10,963,570.95
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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.