Finding the Fourth Proportional to 961,121,816,748.39, 1,326,349,088,704.10 and 521,659,291,565.41
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Solution
The fourth proportional to 961,121,816,748.39, 1,326,349,088,704.10 and 521,659,291,565.41 is: 719,890,355,129.60
Step by Step Solution
- Step 1: Write the proportion equation
961,121,816,748.39 : 1,326,349,088,704.10 = 521,659,291,565.41 : x - Step 2: Convert to fraction form
961,121,816,748.39/1,326,349,088,704.10 = 521,659,291,565.41/x - Step 3: Cross multiply
961,121,816,748.39x = 1,326,349,088,704.10 × 521,659,291,565.41 - Step 4: Simplify right side
961,121,816,748.39x = 691,902,325,981,807,978,217,472 - Step 5: Solve for x
x = 691,902,325,981,807,978,217,472/961,121,816,748.39 - Step 6: Final answer
x = 719,890,355,129.60
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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.