Finding the Fourth Proportional to 118,345,809.20, 177,518,713.80 and 54,644,817.20
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Solution
The fourth proportional to 118,345,809.20, 177,518,713.80 and 54,644,817.20 is: 81,967,225.80
Step by Step Solution
- Step 1: Write the proportion equation
118,345,809.20 : 177,518,713.80 = 54,644,817.20 : x - Step 2: Convert to fraction form
118,345,809.20/177,518,713.80 = 54,644,817.20/x - Step 3: Cross multiply
118,345,809.20x = 177,518,713.80 × 54,644,817.20 - Step 4: Simplify right side
118,345,809.20x = 9,700,477,665,180,118 - Step 5: Solve for x
x = 9,700,477,665,180,118/118,345,809.20 - Step 6: Final answer
x = 81,967,225.80
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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.