Finding the Fourth Proportional to 15,469,446,055,087, 21,347,901,924,676 and 8,438,197,430,700.80
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Solution
The fourth proportional to 15,469,446,055,087, 21,347,901,924,676 and 8,438,197,430,700.80 is: 11,644,748,656,815.47
Step by Step Solution
- Step 1: Write the proportion equation
15,469,446,055,087 : 21,347,901,924,676 = 8,438,197,430,700.80 : x - Step 2: Convert to fraction form
15,469,446,055,087/21,347,901,924,676 = 8,438,197,430,700.80/x - Step 3: Cross multiply
15,469,446,055,087x = 21,347,901,924,676 × 8,438,197,430,700.80 - Step 4: Simplify right side
15,469,446,055,087x = 180,137,811,171,653,673,856,008,192 - Step 5: Solve for x
x = 180,137,811,171,653,673,856,008,192/15,469,446,055,087 - Step 6: Final answer
x = 11,644,748,656,815.47
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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.