Finding the Fourth Proportional to 20,727,428,367,372, 28,604,750,287,880 and 11,478,412,667,808
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Solution
The fourth proportional to 20,727,428,367,372, 28,604,750,287,880 and 11,478,412,667,808 is: 15,840,707,406,845.36
Step by Step Solution
- Step 1: Write the proportion equation
20,727,428,367,372 : 28,604,750,287,880 = 11,478,412,667,808 : x - Step 2: Convert to fraction form
20,727,428,367,372/28,604,750,287,880 = 11,478,412,667,808/x - Step 3: Cross multiply
20,727,428,367,372x = 28,604,750,287,880 × 11,478,412,667,808 - Step 4: Simplify right side
20,727,428,367,372x = 328,337,128,063,886,349,859,553,280 - Step 5: Solve for x
x = 328,337,128,063,886,349,859,553,280/20,727,428,367,372 - Step 6: Final answer
x = 15,840,707,406,845.36
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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.