Finding the Fourth Proportional to 3,919,124,403.98, 5,879,537,858.81 and 1,431,981,335.90
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Solution
The fourth proportional to 3,919,124,403.98, 5,879,537,858.81 and 1,431,981,335.90 is: 2,148,283,037.15
Step by Step Solution
- Step 1: Write the proportion equation
3,919,124,403.98 : 5,879,537,858.81 = 1,431,981,335.90 : x - Step 2: Convert to fraction form
3,919,124,403.98/5,879,537,858.81 = 1,431,981,335.90/x - Step 3: Cross multiply
3,919,124,403.98x = 5,879,537,858.81 × 1,431,981,335.90 - Step 4: Simplify right side
3,919,124,403.98x = 8,419,388,477,533,370,368 - Step 5: Solve for x
x = 8,419,388,477,533,370,368/3,919,124,403.98 - Step 6: Final answer
x = 2,148,283,037.15
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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.