Finding the Fourth Proportional to 7,478,936.75, 10,320,935.51 and 4,041,177.78
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Solution
The fourth proportional to 7,478,936.75, 10,320,935.51 and 4,041,177.78 is: 5,576,826.85
Step by Step Solution
- Step 1: Write the proportion equation
7,478,936.75 : 10,320,935.51 = 4,041,177.78 : x - Step 2: Convert to fraction form
7,478,936.75/10,320,935.51 = 4,041,177.78/x - Step 3: Cross multiply
7,478,936.75x = 10,320,935.51 × 4,041,177.78 - Step 4: Simplify right side
7,478,936.75x = 41,708,735,277,899.80 - Step 5: Solve for x
x = 41,708,735,277,899.80/7,478,936.75 - Step 6: Final answer
x = 5,576,826.85
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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.