Finding the Fourth Proportional to 1,207,894,375.02, 1,666,699,783.81 and 679,226,840.94
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Solution
The fourth proportional to 1,207,894,375.02, 1,666,699,783.81 and 679,226,840.94 is: 937,223,694.69
Step by Step Solution
- Step 1: Write the proportion equation
1,207,894,375.02 : 1,666,699,783.81 = 679,226,840.94 : x - Step 2: Convert to fraction form
1,207,894,375.02/1,666,699,783.81 = 679,226,840.94/x - Step 3: Cross multiply
1,207,894,375.02x = 1,666,699,783.81 × 679,226,840.94 - Step 4: Simplify right side
1,207,894,375.02x = 1,132,067,228,952,647,296 - Step 5: Solve for x
x = 1,132,067,228,952,647,296/1,207,894,375.02 - Step 6: Final answer
x = 937,223,694.69
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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.