Finding the Fourth Proportional to 39,231,163,843.20, 54,169,853,379.84 and 31,585,924,368
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Solution
The fourth proportional to 39,231,163,843.20, 54,169,853,379.84 and 31,585,924,368 is: 43,613,411,488.88
Step by Step Solution
- Step 1: Write the proportion equation
39,231,163,843.20 : 54,169,853,379.84 = 31,585,924,368 : x - Step 2: Convert to fraction form
39,231,163,843.20/54,169,853,379.84 = 31,585,924,368/x - Step 3: Cross multiply
39,231,163,843.20x = 54,169,853,379.84 × 31,585,924,368 - Step 4: Simplify right side
39,231,163,843.20x = 1,711,004,891,881,275,392,000 - Step 5: Solve for x
x = 1,711,004,891,881,275,392,000/39,231,163,843.20 - Step 6: Final answer
x = 43,613,411,488.88
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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.