Finding the Fourth Proportional to 518,162,758.48, 777,129,487.80 and 149,617,712.80
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Solution
The fourth proportional to 518,162,758.48, 777,129,487.80 and 149,617,712.80 is: 224,393,464.43
Step by Step Solution
- Step 1: Write the proportion equation
518,162,758.48 : 777,129,487.80 = 149,617,712.80 : x - Step 2: Convert to fraction form
518,162,758.48/777,129,487.80 = 149,617,712.80/x - Step 3: Cross multiply
518,162,758.48x = 777,129,487.80 × 149,617,712.80 - Step 4: Simplify right side
518,162,758.48x = 116,272,336,514,071,504 - Step 5: Solve for x
x = 116,272,336,514,071,504/518,162,758.48 - Step 6: Final answer
x = 224,393,464.43
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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.