Finding the Fourth Proportional to 4,338,565,109.42, 5,981,167,615.62 and 2,909,891,521.79
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Solution
The fourth proportional to 4,338,565,109.42, 5,981,167,615.62 and 2,909,891,521.79 is: 4,011,591,043.61
Step by Step Solution
- Step 1: Write the proportion equation
4,338,565,109.42 : 5,981,167,615.62 = 2,909,891,521.79 : x - Step 2: Convert to fraction form
4,338,565,109.42/5,981,167,615.62 = 2,909,891,521.79/x - Step 3: Cross multiply
4,338,565,109.42x = 5,981,167,615.62 × 2,909,891,521.79 - Step 4: Simplify right side
4,338,565,109.42x = 17,404,548,935,067,639,808 - Step 5: Solve for x
x = 17,404,548,935,067,639,808/4,338,565,109.42 - Step 6: Final answer
x = 4,011,591,043.61
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1.5x scale
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.