Finding the Fourth Proportional to 1,988,329,890.20, 2,982,801,290.96 and 677,925,486.99
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Solution
The fourth proportional to 1,988,329,890.20, 2,982,801,290.96 and 677,925,486.99 is: 1,016,992,717.22
Step by Step Solution
- Step 1: Write the proportion equation
1,988,329,890.20 : 2,982,801,290.96 = 677,925,486.99 : x - Step 2: Convert to fraction form
1,988,329,890.20/2,982,801,290.96 = 677,925,486.99/x - Step 3: Cross multiply
1,988,329,890.20x = 2,982,801,290.96 × 677,925,486.99 - Step 4: Simplify right side
1,988,329,890.20x = 2,022,117,017,768,458,752 - Step 5: Solve for x
x = 2,022,117,017,768,458,752/1,988,329,890.20 - Step 6: Final answer
x = 1,016,992,717.22
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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.