Finding the Fourth Proportional to 19,800,697.87, 29,701,070.49 and 5,423,889.61
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Solution
The fourth proportional to 19,800,697.87, 29,701,070.49 and 5,423,889.61 is: 8,135,840.90
Step by Step Solution
- Step 1: Write the proportion equation
19,800,697.87 : 29,701,070.49 = 5,423,889.61 : x - Step 2: Convert to fraction form
19,800,697.87/29,701,070.49 = 5,423,889.61/x - Step 3: Cross multiply
19,800,697.87x = 29,701,070.49 × 5,423,889.61 - Step 4: Simplify right side
19,800,697.87x = 161,095,327,488,083.25 - Step 5: Solve for x
x = 161,095,327,488,083.25/19,800,697.87 - Step 6: Final answer
x = 8,135,840.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.