Finding the Fourth Proportional to 319,881,630.42, 479,822,445.63 and 77,544,534.42
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Solution
The fourth proportional to 319,881,630.42, 479,822,445.63 and 77,544,534.42 is: 116,316,801.63
Step by Step Solution
- Step 1: Write the proportion equation
319,881,630.42 : 479,822,445.63 = 77,544,534.42 : x - Step 2: Convert to fraction form
319,881,630.42/479,822,445.63 = 77,544,534.42/x - Step 3: Cross multiply
319,881,630.42x = 479,822,445.63 × 77,544,534.42 - Step 4: Simplify right side
319,881,630.42x = 37,207,608,150,644,112 - Step 5: Solve for x
x = 37,207,608,150,644,112/319,881,630.42 - Step 6: Final answer
x = 116,316,801.63
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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.