Finding the Fourth Proportional to 3,981,132,802,129, 5,971,968,884,279.50 and 1,399,241,412,926.80
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Solution
The fourth proportional to 3,981,132,802,129, 5,971,968,884,279.50 and 1,399,241,412,926.80 is: 2,098,956,903,704.76
Step by Step Solution
- Step 1: Write the proportion equation
3,981,132,802,129 : 5,971,968,884,279.50 = 1,399,241,412,926.80 : x - Step 2: Convert to fraction form
3,981,132,802,129/5,971,968,884,279.50 = 1,399,241,412,926.80/x - Step 3: Cross multiply
3,981,132,802,129x = 5,971,968,884,279.50 × 1,399,241,412,926.80 - Step 4: Simplify right side
3,981,132,802,129x = 8,356,226,179,594,133,100,822,528 - Step 5: Solve for x
x = 8,356,226,179,594,133,100,822,528/3,981,132,802,129 - Step 6: Final answer
x = 2,098,956,903,704.76
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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.