Finding the Fourth Proportional to 472,393,044.20, 708,589,566.30 and 455,174,355.80
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Solution
The fourth proportional to 472,393,044.20, 708,589,566.30 and 455,174,355.80 is: 682,761,533.70
Step by Step Solution
- Step 1: Write the proportion equation
472,393,044.20 : 708,589,566.30 = 455,174,355.80 : x - Step 2: Convert to fraction form
472,393,044.20/708,589,566.30 = 455,174,355.80/x - Step 3: Cross multiply
472,393,044.20x = 708,589,566.30 × 455,174,355.80 - Step 4: Simplify right side
472,393,044.20x = 322,531,799,367,203,904 - Step 5: Solve for x
x = 322,531,799,367,203,904/472,393,044.20 - Step 6: Final answer
x = 682,761,533.70
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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.