Finding the Fourth Proportional to 720,763,052.42, 994,660,841.16 and 423,417,827.12
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Solution
The fourth proportional to 720,763,052.42, 994,660,841.16 and 423,417,827.12 is: 584,321,200.52
Step by Step Solution
- Step 1: Write the proportion equation
720,763,052.42 : 994,660,841.16 = 423,417,827.12 : x - Step 2: Convert to fraction form
720,763,052.42/994,660,841.16 = 423,417,827.12/x - Step 3: Cross multiply
720,763,052.42x = 994,660,841.16 × 423,417,827.12 - Step 4: Simplify right side
720,763,052.42x = 421,157,132,080,345,344 - Step 5: Solve for x
x = 421,157,132,080,345,344/720,763,052.42 - Step 6: Final answer
x = 584,321,200.52
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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.