Finding the Fourth Proportional to 27,687,583,372.88, 38,208,366,992.36 and 15,644,335,608.68
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Solution
The fourth proportional to 27,687,583,372.88, 38,208,366,992.36 and 15,644,335,608.68 is: 21,588,901,719.52
Step by Step Solution
- Step 1: Write the proportion equation
27,687,583,372.88 : 38,208,366,992.36 = 15,644,335,608.68 : x - Step 2: Convert to fraction form
27,687,583,372.88/38,208,366,992.36 = 15,644,335,608.68/x - Step 3: Cross multiply
27,687,583,372.88x = 38,208,366,992.36 × 15,644,335,608.68 - Step 4: Simplify right side
27,687,583,372.88x = 597,744,516,288,091,127,808 - Step 5: Solve for x
x = 597,744,516,288,091,127,808/27,687,583,372.88 - Step 6: Final answer
x = 21,588,901,719.52
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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.