Finding the Fourth Proportional to 5,378,368.66, 7,421,932.80 and 2,930,927.54
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Solution
The fourth proportional to 5,378,368.66, 7,421,932.80 and 2,930,927.54 is: 4,044,562.32
Step by Step Solution
- Step 1: Write the proportion equation
5,378,368.66 : 7,421,932.80 = 2,930,927.54 : x - Step 2: Convert to fraction form
5,378,368.66/7,421,932.80 = 2,930,927.54/x - Step 3: Cross multiply
5,378,368.66x = 7,421,932.80 × 2,930,927.54 - Step 4: Simplify right side
5,378,368.66x = 21,753,147,243,549.31 - Step 5: Solve for x
x = 21,753,147,243,549.31/5,378,368.66 - Step 6: Final answer
x = 4,044,562.32
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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.