Finding the Fourth Proportional to 5,378,389.44, 7,421,913 and 2,930,993.07
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Solution
The fourth proportional to 5,378,389.44, 7,421,913 and 2,930,993.07 is: 4,044,626.34
Step by Step Solution
- Step 1: Write the proportion equation
5,378,389.44 : 7,421,913 = 2,930,993.07 : x - Step 2: Convert to fraction form
5,378,389.44/7,421,913 = 2,930,993.07/x - Step 3: Cross multiply
5,378,389.44x = 7,421,913 × 2,930,993.07 - Step 4: Simplify right side
5,378,389.44x = 21,753,575,569,142.91 - Step 5: Solve for x
x = 21,753,575,569,142.91/5,378,389.44 - Step 6: Final answer
x = 4,044,626.34
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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.