Finding the Fourth Proportional to 3,919,124,404.98, 5,879,537,860.31 and 1,431,981,336.90
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Solution
The fourth proportional to 3,919,124,404.98, 5,879,537,860.31 and 1,431,981,336.90 is: 2,148,283,038.65
Step by Step Solution
- Step 1: Write the proportion equation
3,919,124,404.98 : 5,879,537,860.31 = 1,431,981,336.90 : x - Step 2: Convert to fraction form
3,919,124,404.98/5,879,537,860.31 = 1,431,981,336.90/x - Step 3: Cross multiply
3,919,124,404.98x = 5,879,537,860.31 × 1,431,981,336.90 - Step 4: Simplify right side
3,919,124,404.98x = 8,419,388,485,560,880,128 - Step 5: Solve for x
x = 8,419,388,485,560,880,128/3,919,124,404.98 - Step 6: Final answer
x = 2,148,283,038.65
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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.