Finding the Fourth Proportional to 5,378,566.19, 7,422,204.83 and 2,931,124.73
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Solution
The fourth proportional to 5,378,566.19, 7,422,204.83 and 2,931,124.73 is: 4,044,834.13
Step by Step Solution
- Step 1: Write the proportion equation
5,378,566.19 : 7,422,204.83 = 2,931,124.73 : x - Step 2: Convert to fraction form
5,378,566.19/7,422,204.83 = 2,931,124.73/x - Step 3: Cross multiply
5,378,566.19x = 7,422,204.83 × 2,931,124.73 - Step 4: Simplify right side
5,378,566.19x = 21,755,408,076,571.80 - Step 5: Solve for x
x = 21,755,408,076,571.80/5,378,566.19 - Step 6: Final answer
x = 4,044,834.13
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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.