Finding the Fourth Proportional to 961,121,816,748.90, 1,326,349,088,704.80 and 521,659,291,565.90
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Solution
The fourth proportional to 961,121,816,748.90, 1,326,349,088,704.80 and 521,659,291,565.90 is: 719,890,355,130.28
Step by Step Solution
- Step 1: Write the proportion equation
961,121,816,748.90 : 1,326,349,088,704.80 = 521,659,291,565.90 : x - Step 2: Convert to fraction form
961,121,816,748.90/1,326,349,088,704.80 = 521,659,291,565.90/x - Step 3: Cross multiply
961,121,816,748.90x = 1,326,349,088,704.80 × 521,659,291,565.90 - Step 4: Simplify right side
961,121,816,748.90x = 691,902,325,982,823,066,894,336 - Step 5: Solve for x
x = 691,902,325,982,823,066,894,336/961,121,816,748.90 - Step 6: Final answer
x = 719,890,355,130.28
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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.