Finding the Fourth Proportional to 28,377,660.80, 42,566,491.20 and 27,929,763.20
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Solution
The fourth proportional to 28,377,660.80, 42,566,491.20 and 27,929,763.20 is: 41,894,644.80
Step by Step Solution
- Step 1: Write the proportion equation
28,377,660.80 : 42,566,491.20 = 27,929,763.20 : x - Step 2: Convert to fraction form
28,377,660.80/42,566,491.20 = 27,929,763.20/x - Step 3: Cross multiply
28,377,660.80x = 42,566,491.20 × 27,929,763.20 - Step 4: Simplify right side
28,377,660.80x = 1,188,872,019,470,884 - Step 5: Solve for x
x = 1,188,872,019,470,884/28,377,660.80 - Step 6: Final answer
x = 41,894,644.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.