Finding the Fourth Proportional to 1,040,363,240.78, 1,560,891,766.44 and 691,982,739.94
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Solution
The fourth proportional to 1,040,363,240.78, 1,560,891,766.44 and 691,982,739.94 is: 1,038,204,848.99
Step by Step Solution
- Step 1: Write the proportion equation
1,040,363,240.78 : 1,560,891,766.44 = 691,982,739.94 : x - Step 2: Convert to fraction form
1,040,363,240.78/1,560,891,766.44 = 691,982,739.94/x - Step 3: Cross multiply
1,040,363,240.78x = 1,560,891,766.44 × 691,982,739.94 - Step 4: Simplify right side
1,040,363,240.78x = 1,080,110,161,290,937,856 - Step 5: Solve for x
x = 1,080,110,161,290,937,856/1,040,363,240.78 - Step 6: Final answer
x = 1,038,204,848.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.