Finding the Fourth Proportional to 842,042,271.70, 1,161,959,344.99 and 489,593,257.71
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Solution
The fourth proportional to 842,042,271.70, 1,161,959,344.99 and 489,593,257.71 is: 675,604,396.79
Step by Step Solution
- Step 1: Write the proportion equation
842,042,271.70 : 1,161,959,344.99 = 489,593,257.71 : x - Step 2: Convert to fraction form
842,042,271.70/1,161,959,344.99 = 489,593,257.71/x - Step 3: Cross multiply
842,042,271.70x = 1,161,959,344.99 × 489,593,257.71 - Step 4: Simplify right side
842,042,271.70x = 568,887,461,040,231,872 - Step 5: Solve for x
x = 568,887,461,040,231,872/842,042,271.70 - Step 6: Final answer
x = 675,604,396.79
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1.5x scale
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.