Finding the Fourth Proportional to 7,171,406.41, 9,896,252.13 and 3,908,151.08
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Solution
The fourth proportional to 7,171,406.41, 9,896,252.13 and 3,908,151.08 is: 5,393,091.14
Step by Step Solution
- Step 1: Write the proportion equation
7,171,406.41 : 9,896,252.13 = 3,908,151.08 : x - Step 2: Convert to fraction form
7,171,406.41/9,896,252.13 = 3,908,151.08/x - Step 3: Cross multiply
7,171,406.41x = 9,896,252.13 × 3,908,151.08 - Step 4: Simplify right side
7,171,406.41x = 38,676,048,380,789.79 - Step 5: Solve for x
x = 38,676,048,380,789.79/7,171,406.41 - Step 6: Final answer
x = 5,393,091.14
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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.